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6SCI Earth

Chapter 10 Section 4

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
Created by: ndmsteach