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Astronomy Quiz

What do all living things have in common? Made of cells, have dna, able to reproduce, grow and develop, obtain and use energy, respond to stimuli, maintain homeostasis
Why can life exist on earth? The distance from the sun, the Earth's atmosphere, presence of water, and gravitational pull.
What does the sun do? Fuels all life processes
Earth is the ______ closest planet to the sun 3rd
No sun= No energy
What is the Lithosphere? Earth's crust (soil, rocks, minerals)
What is the Hydrosphere? Earth's water
What is the Atmosphere? The gases in the air
What is the greenhouse effect? The gases in the atmosphere absorb heat emitted by the sun which warms the atmosphere
What does our atmosphere protect us from? Meteors
What percent of the Earth's surface is covered with water? 70%
What requires water and sunlight? Photosynethesis
What is gravity? The tendency of objects to accelerate towards each other
More more objects with mass= more gravity
What holds our solar system together? The sun's gravity
Apollo 8 First manned moon orbit
Apollo 11 FIrst manned moon landing
Created by: carolineconner