STUDENT LED CONFERENCES

2/26/2018

Science Inquiry

The students started their day off with a Zumba class in the gym. If you haven't brought in your $20 for Zumba and tennis, please do so asap.

The students were engaged in their inquiry into electricity this afternoon. They were given 2 challenges today. One was to create a complete circuit with two bulbs that used one pathway and another was to create a complete circuit with two bulbs that allowed for multiple pathways. From there, they added more light bulbs and made predictions as to what would happen and why it was happening.

1.) PARENTS - STUDENT LED CONFERENCES:

Student led conferences will be held on March 7th and 8th. On both of these days, your child will be dismissed at 2pm.
This is an opportunity for your child to share their work at school with you.
Students will take you through their FreshGrade portfolios to show you some highlights and specific assessments.
If you are unable to make it on either of those days, your child may also take you through their digital portfolios from home. Any specific questions can be addressed by email or you can set up a an alternative time to meet with me.
Please be aware there will be multiple parents and students in the classroom at the same time and conferences will be 15 minutes each.
Click here to select your preferred time slot.

2.) MATH:

Complete Questions from lesson 6.3. Review the lesson if you need.
Mark your answers at home.
Do all corrections at home. We will go over any challenging questions tomorrow.

3.) POST A RESPONSE:

Today, you investigated different ways of making light bulbs work using different types of circuits.
Click here and complete this online electrical challenge! Follow the instructions at the bottom of the link.
After completing the challenge, answer this question: How does the brightness of the two lamps compare with the lamp on its own? What is your hypothesis for this?
In addition to completing everything above, write about what you learned in Science today (at school and at home).

VIDEO LINKS:
Series vs Parallel Circuits

k dub

2/26/2018 03:21:14 pm

FIRST

Eason

2/26/2018 03:34:33 pm

2n d

Eknoor

2/26/2018 03:58:15 pm

3rd

Eknoor

2/26/2018 04:07:40 pm

@ Mr. Hong - I understand what to do but the two items don't connect. I'm kinda confused.

Eknoor

2/26/2018 04:23:03 pm

@ Mr. Hong - Also in the conference thing I think there is a typo because for two of them it says the date is the 9th.

Sofia

2/26/2018 05:10:46 pm

@Eknoor- the days are the same, but the times are different

Mr. Hong

2/26/2018 05:39:34 pm

@ Eknoor - Thanks for the feedback. I have corrected the conference survey.

Complete the online challenge. After that, write a short paragraph about what you learned from the in-class challenges today.

Eknoor

2/26/2018 07:47:18 pm

My P.A.R.
We've been doing a lot of experiments lately and a few things I learned was about a parallel circuit and a series circuit. The difference between these two is that if in a series circuit one bulb goes out, the same happens to the others. In a parallel circuit, if one bulb goes out then the others still work because the electricity flows to all the other bulbs but that doesn't happen in a series circuit. The biggest things I learned was how to make a complete circuit, how to make the compass point north/move with magnetism, how to make a series circuit and how to make a parallel circuit. So far this science unit is pretty lit and I can't wait for more fun experiments

emily z

2/26/2018 04:38:23 pm

4th

Sofia

2/26/2018 05:09:10 pm

5th

Sofia

2/26/2018 05:11:46 pm

@Mr.Hong, the conferences say "FEBRUARY", but I think it's supposed to be march...

Karman

2/26/2018 05:28:27 pm

9th comment internationally, including reply's to comments.

Emily Z.

2/26/2018 06:00:27 pm

Can someone send me the questions for math from 4-10. The link that Mr. Hong put doesn't work.

Mr. Hong

2/26/2018 06:18:37 pm

@ Emily Z - I'll fix it. Give me a few minutes.

Emily Z.

2/26/2018 06:21:51 pm

@Mr. Hong- Thank you.

Issac

2/26/2018 06:03:18 pm

@Mr.Hong
I don't get how you use the website

Mr. Hong

2/26/2018 06:21:28 pm

@ Issac - Play around with it. You'll figure it out.

Mr. Hong

2/26/2018 06:23:12 pm

@ Issac - Read the instructions at the bottom of the circuit building page. There are clear instructions.

Issac

2/26/2018 06:37:52 pm

Well 2 light bulbs have more light or covers more area with light, but the second light was dimmer, while the one light bulb covers less area with light and seems to be brighter. I think the second light bulb is dimmer because there isn't enough charge or energy to reach the second light bulb. If you have more light bulbs then you need to add more batteries/cells.
What I learned in science today was making a parallel and series circuit. I also learned that there are different variables that could change how your experiment went. For example, the battery we used didn't have enough power, so we couldn't tell if the light was even on.

Mr. Hong

2/26/2018 06:48:29 pm

@ Issac - Do you think that the light bulbs would be brighter in a series or a parallel circuit? Or would they be the same brightness?

Issac

2/26/2018 07:36:32 pm

@Mr.Hong
I think that the light bulb would be brighter in a series circuit because the electrons would travel a shorter distance to get to each bulb. Where the parallel circuit is longer so the power may be lost during the travel through each wire.

Nicole

2/26/2018 06:35:10 pm

@Everyone - Am I the only one who doesn’t understand what we have to do from that electricity website thing? I also don’t think I have whatever a cell is at my house....

Jerry

2/26/2018 06:50:09 pm

Your computer has a cell.

Mr. Hong

2/26/2018 06:50:45 pm

@ Nicole - Just follow the instructions at the bottom of the link I provided. If you try and can't figure it, it isn't a big deal. You can hypothesize what might happen. :-)

Jerry

2/26/2018 06:49:27 pm

At the start my hypothesis is the more bulbs added the dimmer all of them get no matter series or parallel. In The series circuit test it is true. One bulb is a lot brighter than two bulbs. And in the parallel circuit too. It isn't very obvious but you can see the difference if you add 2 or more bulbs. But the weird thing is the video said the bulbs in parallel becomes brighter with the more bulbs added. It is very interesting so I did a bit of research and found out it does become brighter. I don't really understand why, but it did look dimmer in my experiment so I will do my experiment again next time. And hope I can find the answer.

Mr. Hong

2/26/2018 06:54:02 pm

@ Jerry - I'm looking forward to seeing what you find out! You can test out your new hypothesis tomorrow!

Vivian

2/26/2018 07:35:24 pm

I can't do it because I don't have a computer. I only see the instructions but nothing else.

Vivian

2/26/2018 07:35:49 pm

So I don't know what to do...

Mr. Hong

2/26/2018 08:49:13 pm

@ Vivian - Just answer the question about what you learned today.

Awesome Andrew

2/26/2018 07:42:26 pm

Why is the symbol for a volt an omega? And also what's a resistance?
Anyways, (the guy is also cringe) I think it's dimmer because if you go through more things that take the volts, it takes the electrons or something and there's less stuff for the other light bulbs. Or they just become dimmer because there are lots of light bulbs they have to go through so electrons get lazy or something. What? Don't look at me like that, some human cells make you lazy, it could be same with electrons! Well it probably isn't right anyways as it was a complete guess because that person in the video is too cringe to look at and I can't listen to him properly. Actually it was 10% that reason but mostly because he's a bad teacher or explainer or whatever and I have no idea what a resistance is and I don't feel like searching it up because, like always it will be too complicated, "Resistance is an electrical quantity that measures how the device or material reduces the electric current flow through it. The resistance is measured in units of ohms (Ω). If we make an analogy to water flow in pipes, the resistance is bigger when the pipe is thinner, so the water flow is decreased." Oh, that omega sign isn't volts. Like I said, that person in the video is too cringe to look at and I can't listen to him properly. Well anyways, I searched it up. What can I say, I'm a rebel. I don't understand a thing because I'm always right. Hope you can explain this to me in science, Mr.Hong. I'm very bad at listening and understanding things though. So it will probably be too hard for you to explain to me. My dad has to explain one math problem to me for 1hour because I'm a bad listener and stuff. Just warning you, you know.

k dub

2/26/2018 09:35:33 pm

I think he's depressed

k dub

2/26/2018 09:37:13 pm

* the guy in the video

Awesome Andrew

2/26/2018 07:47:47 pm

Hurry up people. Mr.Hong is gonna get mad at us. Only 3 responses. C'mon guys, get movin'. It was posted at 3:20 even. If we have detention again, I'm blaming you and you and you you and you and you you and you and you you and you and you you and you and you you and you and you.

k dub

2/26/2018 09:56:50 pm

.....and you,you,you,you,you,you,you,you,you and of course... MYSELF

Awesome Andrew

2/26/2018 07:48:47 pm

OMG it's been one minute, hurry up

Casey

2/26/2018 07:49:42 pm

Do you mean in real life or in that game I honestly don't have any clue what to do. Please inform me. -Casey

Nicole

2/26/2018 07:56:36 pm

@ Casey - Even after Mr. Hong responding to me I'm still confused as well. Welp.

Casey

2/26/2018 07:58:36 pm

@Nicole + @Mr. Hong SO AM I HOW DO YOU PLACE A WIRE AND THINGS LIKE THAT?

Nicole

2/26/2018 08:06:16 pm

@ Casey - It wont let me place the wires really, they're super tiny.

Emily Z.

2/26/2018 08:08:47 pm

@People- You just have to click on the wires and then you can drag from the rectangular thingy on the light bulb, switch, and battery to the other thing.
Sorry, I'm REALLY bad at explaining.

Mr. Hong

2/26/2018 08:50:18 pm

@ Casey/Nicole - You can still answer the second part of the question and make inferences for the first part even if the website doesn't work for you. Make a hypothesis about what might happen?

Casey

2/26/2018 08:01:54 pm

I found it out but this whole thing is confusing. What lamp?

Nicole

2/26/2018 08:07:12 pm

@ Casey - HOW DO WE DO IT?!?!

Casey

2/26/2018 08:08:25 pm

ZOOM IN TO PLACE THE WIRES I AM SO SMART!

Nicole

2/26/2018 08:10:48 pm

@ Casey - Okay

Mr. Hong

2/26/2018 08:50:50 pm

@ Casey - Read the instructions at the bottom of that link.

Cassandra

2/26/2018 08:02:03 pm

Well it depends on the battery that the lamp uses. If its one battery and a lamp then the lamp will shine bright but with two lamps and one battery both of the lamps will be dim because the battery can only pass a certaint amount of energy but if you add more lamps then the lamps will get dimmer and eventually they wont work.

Emily Z.

2/26/2018 08:02:28 pm

Base on the link and the experiment we did at school today, I think the reason why two light bulbs in a circuit isn't as bright as a singular light bulb is probably because the electrons have to go through more light bulbs than one light bulb. The reason is because the electrons can only go in one direction. For example, Lily and Jack wants to clear up more area but running around the track field. Let's say that they run the same speed. If they start in the same area but go to different ways, they'll clear more area than they would if they go the same way. Get it now? I think that's what is happening in circuit. It just makes the light bulbs dimmer.

Emily Z.

2/26/2018 08:04:03 pm

Only 6 PARs done and it's 8. Hurry up people.

Casey

2/26/2018 08:10:57 pm

How does the brightness of the two lamps compare with the lamp on its own? What is your hypothesis for this? Well, my hypothesis is that is would stay the same because the same amount of electricity is flowing through it. It could be slightly dimmer though because it also needs energy to power it. The outcome may differentiate because of certain bulbs and batteries.

May

2/26/2018 08:12:23 pm

So my hypothesis was that, if there are two light bulbs then the light of all of the bulbs with get dimer and the fewer the light bulbs, the brighter it is. I think it is safe to assume that my hypothesis is true. Because I think that electricity needs to be equally sent to all of the bulbs and when there is one bulb, than all of the electricity or cells can go to that one bulb.

Marina

2/26/2018 08:12:50 pm

These days we've been learning about the electricity and we get to play around with the light bulb, wires, and batteries. There are two different kinds of circuit: series circuit and parallel circuit. You can only tell which kind it is with two or more light bulbs. Let's say, when you light up two bulbs, then you turn one off. the one you turned off didn't light up now, but the other light bulb's still on. that's a parallel circuit, the other bulbs will still light even when you turn one off. Now, think about the opposite, when you turn one light bulbs off, all of the other light bulbs that are in the circuit automatically turns off too. That's called a series circuit, just like a "series of circuit", every light bulb is connected to the others.

Nicole

2/26/2018 08:17:45 pm

Well, I couldn't do the challenge thing but here's my hypothesis...

I think that if you add more light bulbs with just one cell they will get dimmer. I know this because today, when my group added the next bulb they were both dim. I think this is because the more electricity goes in, the brighter they get. When the electricity is shared by both, they might not get as much.

Millie

2/26/2018 09:16:22 pm

What I learned in school today is actually what we have to post anyway. So when there are two light bulbs, the glow is brighter. Why? It doesn't when it is on a parallel circut- so why not the other one? My theory is that the electricity traveling along that wire, or in that circut, has to be divided. To put it simply, a wire lets a certain amount of electricity to pass through. That energy has to be shared by both light bulbs. It is different for the parallel because there are two wires instead of one.

Sofia

2/26/2018 09:20:14 pm

My hypothesis is that two lamps will split the amount of power that one lamp receives, therefore making the two lamps a little bit dimmer. Of course, if you only have one lamp, it will be brighter, because the energy doesn't have to be split between two or more lamps. As many other people may think, when the energy is shared, there's less energy for each singular lamp.

Sofia

2/26/2018 09:46:11 pm

I realized that I could make this statement a little bit clearer, so here's my revised copy:
Today, I had to play an online game to try to light two lightbulbs with a battery. I also had to do a similar activity at school. My hypothesis about this experiment was that two lamps will split the amount of power that one lamp receives, therefore making the two lamps a little bit dimmer. Of course, if you only have one lamp, it will be brighter, because the energy doesn't have to be split between two or more lamps. As many other people may think, when the energy is shared, there's less energy for each singular lamp. This seemed logical to me, as we were told only to use one battery.

Jessica L.

2/26/2018 09:46:16 pm

Hooray! We’re doing an experiment! We have been trying to make a circuit to light two light bulbs. We think that if we light two light bulbs, then the light bulbs will be dimmer than when we light one light bulb. We think when there is one light bulb, all the electricity in the battery goes to the one light bulb. Therefore it is brighter. However when there are two light bulbs, half of the electricity in the battery goes to one light bulb and the other half goes to the other light bulb. As a result, it’s dimmer. Hey look! We’re right. If we have one light bulb it’s brighter and if we have two light bulbs they’re dimmer. Woo hoo! Now let’s go do more experiments!

Recently we have been experimenting and learning about electricity and circuits. Today we learned about parallel circuits and series circuits. If we have a series circuit in our house and everything was connected to it, we would have to turn on everything or else nothing would work. However if we had a parallel circuit, we wouldn’t have to turn on everything and we could just turn on one thing when we need it.

Stephanie

2/26/2018 09:51:36 pm

The scientific method~ You make an hypothesis! Exactly! My hypothesis for this question is that, since the battery would always have the same amount of power, the power that is sent directly to the one lightbulb would make it shine brighter. Rather than splitting the power into 2, the 2 bulbs would be dimmer, as the power is shared. It's pretty much common sense. If you have 4 candies, and you share them with another friend, you yourself would have less. If you were planning to be sugar high, then eating 2 candies would lessen the chance of that.

I'm sorry, I don't know what I'm writing. The game was really hard for me.. So I'm pretty much rushing this. Thank you and bye!

Aries

2/26/2018 09:58:13 pm

After I did this experiment , I think that when you are using two lamps , it actually is not that bright but if you are only lighting one light bulb ,it actually is so bright but why. It is because if you put the battery there and put the wire in the end of the battery , if you only want to light one light bulb , the electricity is just going through in that wire , so it definitely is brighter. However ,if you need to light two light bulbs , the electricity have to go through two wires and which actually mean that some electricity will go to the first and the second light bulb,so it is not that bright. While I was doing this experiment,I actually tried out a lot of method and I wanted to know that if there is only one method to light the light bulb , but after I tried , I think this is the only way. Also, I learned that how can we build a circuit, and it is a little bit different with the first challenge, we need to light to light bulbs and I also learned that to build it , there are different method and we can also actually put four light bulbs and it worked too!

J.H

2/26/2018 10:01:02 pm

@Mr.Hong-For some reason my phone can't let me do the online challenge, so what can I do?

J.H

2/26/2018 10:02:44 pm

@Mr.Hong -And I might not check the website again so I might not do the PAR

k dub

2/26/2018 10:09:10 pm

I think that two bulbs shine less than one bulb. I think that because the depressed and cringy man said that when you add another light pressure overtakes the light. I done it on the website and it went dimmer. Or it was just me. The website is VERY annoying. I'm done,I'll revise after 20 min or so. I'll nap until then. :-l

K duby

2/26/2018 10:52:08 pm

P.A.R. (Revised)
I think that two bulbs shine less than one bulb.Why do I think that? I think that because the depressed and cringy man said that when you add another light,you add resistance causing less current. I tried my experiment on the website and it actually did go dimmer. Or was it was just me. The website is VERY annoying. I can continue my research later

Kohane

2/26/2018 10:18:25 pm

I realized something today when we did our experiments. Since it basically already answers the questions for the PAR I’m just going to get right into it. Alright, so my hypothesis for this experiment is that when you want to light up two light bulbs it’s more dimmer. Why? Well, it’s really simple. It’s because you are basically splitting the energy to two so both light bulbs turn on. On the other hand when you want to light up one light bulb you aren’t splitting any energy so you get full power and it’s more bright.

Shermaine

2/26/2018 11:06:32 pm

I don’t really understand the P. A. R.
I get that we need to click the link and everything but I still don’t really understand it. I also was busy today so I didn’t have time to do the P. A. R.
Sorry about that ^~^;

Caden

2/26/2018 11:30:56 pm

Yeah same here. I don't understand it either.

Vivian

2/26/2018 11:35:01 pm

Hypothesis:
The two lamps in a circuit is more dimmer because there's more lamps that the electricity needs to go through. I think it will be better for it to be in a series circuit because electricity can flow through when a parallel circuit might be more confusing and takes a little longer. One lamp will be brighter because only one lamp will be taking up electricity which gives it more power. It'll be more brighter because more power is in it. I feel like both series and parallel circuits work for a one bulb circuit.

Kenton

2/27/2018 06:36:12 am

I think that the bulbs will be equally bright for a parallel circuit, but for a series circuit, certain light bulbs will be brighter. I think so because, in a parallel circuit, all the light bulb receive the same amounts of electricity at a equal distance. However, I think that in a series circuit, the electricity goes through one another which makes the light bulb drain the electricity before it can arrive at the second light bulb.

Yesterday in class, we learned about parallel and series circuit and we found out many things, but many more questions. We found out that certain light bulbs can be brighter or dimmer which was sort of annoying. I really enjoyed yesterday's lesson.

Miles

2/27/2018 07:40:15 am

I think that in a parallel circuit the bulbs will be dimmer depending on how many batteries you are using, and the amount of bulbs. I say this because I think that when using a parallel circuit and a light bulb goes out the current has to readjust and spread the electricity evenly into all the light bulbs, so they all are the same brightness. And when using a series circuit, I think that some of them might be brighter then the other, because when electricity goes through one bulb it can get used up. So the second may not even light up (depending on the strength of the battery).

In class yesterday, I had learned through our experiment that light bulbs can be a pain, some can be dimmer then the others or brighter then others. But what I mainly learned is that science experiments leave you with quite a bit of questions. And parallel circuits are more productive when lighting multiple bulbs.

Eknoor

2/27/2018 08:06:17 am

21 P.A.R's. done and 7 to go.

Eason

2/27/2018 08:16:33 pm

When more light bulbs were added to a series circuit, the light bulbs became dimmer. This is because all the light bulbs share the same amount of currents. In a parallel circuit, when more light bulbs were added, the light bulbs were just as bright. This is because each light bulb has its own circuit. I loved doing this experiment. I learned many things about electricity in our science class.

Comments are closed.

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