1.The Challenge was to try to help the environment. We also have to make a prototype to show how we would help the environment.

2.The thing that I did was to help air pollution. My choice was to help air pollution so that we don't get sick from the gas in the air.

3.I can help with it because I would make a helicopter that would run off of a solar panel so that it wouldn't use gas. If we do that we will be lowering our pollution in our air.
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1.Making the video. And making the photo type.

2.How to help the world more.

3.Keep a watch by you or watch the clock when you are working on a project.

1. A sphere best describes the earth because of the pictures.
2.Core but not all the way.
3.Tennis ball with rubber band.
​4.They are helpful because you can use it to figure out its shape and how it turns.
5. Because space has gravity so it doesn't fall.
6. A bird has the power to fly. A plane has the power from the jets so that it doesn't fall.
7.No because there hasn't been any time were every thing started floating.
8. Because if a astroid gets to close to earth gravitational force it will come down to earth.

Notes from my reserch

• Shadows 
• Horizon line
• If the earth was flat then you would get pulled back to the middle of the earth if you reach the end.
• If the earth was flat then every state or country would have the same time, and we don't.
• When it's light where you live then the other side of the earth would be dark.
• If the earth was flat then we would fall into space or float into space.
• If the earth was flat then there would be no big mountains.

Notes from video

• The moon is round.
• It must be a sphere or how will it make the shapes it is
• The earth casts a rounded shadow on the moon during a lunar eclipse.
• When something gets farther away it will get smaller.
• There are real pictures that it looks like the Canada city is sinking but its just that the earth is round and its just on the other side of the earth.
• There is no up and down in space.
• If you are closer to the middle of the earth you are more heavy.
• If you are farther away from the middle of the earth you will be lighter.
• We can now take photos and videos of the earth so we can see its true shape.