What are waves of energy caused by vibrations in the air?
What are sound waves.
100
Where can you find preserved remains of a small insect?
What is amber
100
What waste product is produced by a hydrogen fuel cell?
What is water
100
Why is water important?
What is it's necessary for life
100
What happens to half of the solar radiation that reaches Earth?
What is absorb by Earth's surface
200
What is waves of energy caused by the sudden breaking of rock within the earth or an explosion.
What are seismic waves
200
What are the earliest fossils?
What is one-celled organism
200
Renewable resources include solar cells, hydrogen fuel cells, and biomass energy.Why do these sources produce only a small percentage of the energy used in the world?
What is they are too expensive to be used on a large scale
200
What fraction of water covers the Earth's surface?
What is 3/4
200
When you are breathing, most of the air you are inhaling and exhaling is made of what?
What is nitrogen
300
_________ are billions of tiny particles called photons. These photons travel from one place to another in waves.
What is light waves
300
What does rock fossils form in?
What is sedimentary rock
300
Why are large towers built at nuclear plants?
What is provide water to keep equipments cool
300
A decrease in temperature may cause water to change from……. (2 word answer)
What is liquid to a gas
300
Which part of the atmosphere contains a type of gas that absorbs UV radiation?
What is stratosphere
400
What are waves of energy caused by vibrations on water?
What are water waves
400
Where might a mammoth that has complete bones, muscle, skin, and hair be preserved in?
What is ice
400
What factors determine the type of coal that forms from buried plants? (2 parts)
What is heat and pressure
400
About how much of the total water on Earth is salt water?
What is 97%
400
What are the two common gases in air?
What is nitrogen and oxygen
500
What does a sound wave carry?
What is energy
500
What are two types of rock fossils?
What is cast fossils and mold fossils
500
What is the drawback to using fossil fuels to produce energy?