Question | Answer |
What are the 3 layers of the earth? | crust, mantle, core |
What 3 gases is the Earth's atmosphere made up of? | nitrogen, oxygen, argon |
What is the percentage of nitrogen in the Earth's atmosphere? | 80% |
What is the percentage of oxygen in the Earth's atmosphere? | 20% |
What is the percentage of argon in the Earth's atmosphere? | 1% |
What are comets made of? | ice and rock |
What is the name for hte energy from the sun that can cause sunburn? | ultraviolent light (UV light) |
What are some additional things UV light can cause besides sunburn? | they break apart molecules in your skin and in the air |
What is the name of the Earth's protective layer that shields us from most of the Sun's sunburn rays? | the ozone layer |
How do plants create food? | using the process of photosynthesis |
What 2 things, besides water and soil, do plants need for photosynthesis? | sunlight and carbon dioxide |
What do plants plants give off when they create food? | oxygen |
If you live at the equator you are traveling at a speed of how many MPH? | 1000 MPH |
What are the 2 reasons why we don't just fly off Earth as it spins? | gravity and the atmosphere is moving with us |
What is the Greenhouse Effect? | when certain gases act like the roof of a greenhouse |
When does the Greenhouse Effect happen? | when energy from the sun comes in Earth's atmosphere and when certain gasses won't let the energy out |