Electric house project

This is a electric house, it included tree series circuit and one Complex circuit.

The house has two bedrooms,  a living room, and dinning room.

I used the clay to make some funiture.

The first question is to put the other light bulb in the series circiut and check the voltage of it, if the voltage increases that it can prove it is a series.

Second, you can put the voltmeter beside the bulbs, if you put the new one, it cannot change the voltage.

Third, if the battery is 9 volts, the bulbs voltage would be 4.5. These bulbs would be the volts of the battery divide by two.

Last question has two situation, one is unscrewing the bulb of series and the others bulbs volts would as same as the battery, other situation is unscrewing the bulbs of parallel, it would be two 4.5 volts light.

 

At the first day of it, I put the long wire and cut out the rubber part of the middle wire,and the lights don’t work. I analyze it and find the problem:  resistor. If the resistance is too big, the electrons would not pass it. Because of it, I reset of the cicuits and make all the lights bulbs work.

Our stuff and the sphere mind map

My stuff of the sphere is a plastic bag.I choose this object because I see plastic bags wherever. I want to know what the plastic bags impact our life and how does it make. Some environment problem because of the plastic bags. I have some solution of reducing pollution. For example,  the personal solution is reusing the plastic bags, the large one is developing the bio-base plastic bag made of bioplastic resin pellets made of cellulose or starch as a base material.

After I did project, I prove my creative thinking. In this project you should use  your creative thinking to find the interaction of spheres. I draw many picture also by creative thinking. I think I did a great job on it.

Wonder project

  My wonder question is why do autumn leaves change color.

The question has different meaning to me. I saw many trees make me think why leaves turned yellow in autumn. I research many times and I get three sub-question.

1.      What is photosynthesis and how is it work?

2.      Season just change color and what happened?

3.      What happened to leaves turn yellow and fall down?

The first sub-question, I get answer in a website call live science. Photosynthesis is the way to get energy from sun, water, and carbon dioxide from the air. These things can make glucose to get energy.

The second, I get answer in ASU a science website. The author is Richard K. Simpson. When sunlight wanes and leaves stop making food are most in autumn or winter.

So Chlorophyll will break down into colorless, and yellow pigments were revealed.

The final sub-question is What happened to leaves turn yellow and fall down?

It’s from UCSB. In winter, trees will don’t have energy so it will fall them leaves to save energy so why leaves will fall in winter.

 

https://www.livescience.com/authors/?name=Aparna%20Vidyasagar

https://askabiologist.asu.edu/questions/why-do-leaves-change-color

http://scienceline.ucsb.edu/getkey.php?key=16

My answer

The first, photosynthesis gets carbon dioxide and produced organisms

Chloroplast is an object inside the leaves cell.

The second question I think the temperature will change trees color

I think when the temperature decrease

, photosynthesis cannot easily to do.

And different varieties the color will not similar

Some leaves have red, yellow, or purple pigment.

When the winter trees wants to save more nutrients to survive in the winter so if the nutrients are enough trees will fall the leaves down because some winter doesn’t has sunlight.