States of Matter
What are the three states of matter?
solid, liquid and gas
Through which process does a solid become a liquid?
melting
What is the water cycle?
How long does it take for Earth to rotate one time on its axis?
24 hours
Where does all energy come from?
the sun
Which state of matter has a definite shape and definite volume?
solid
Through which process does a liquid become a gas?
evaporation
Name 3 types of precipitation.
rain, snow, sleet, hail
What does Earth's revolution cause?
What type of consumer eats both plants and animals?
an omnivore
Which state of matter has a shape that changes and a definite volume?
liquid
Through which process does a gas become a liquid?
condensation
Describe the process of evaporation.
heat is added to water until it turns into a gas
What divides the inner and outer planets?
the asteroid belt
What do the arrows in a food chain represent?
the transfer of energy
What tool is used to measure mass?
balance scale
Through which process does a liquid become a solid?
freezing
What is water called when it is a gas?
water vapor
Why does the force of gravity differ from planet to planet?
What shows the relationship among different food chains? (hint: a bunch of food chains combined)
food web
What describes how much space an object takes up?
volume
Burning, decaying and rusting all require _________.
oxygen
What is the mixture of gases that surround Earth?
atmosphere
What is apparent brightness?
how bright the star looks to us on Earth, not how bright it actually is
Which organism can make their own food?