forces
When two objects rub against each other
What is friction
A savannah is a _________ biome
what is grassland
plants produce ______ and provide food
what is oxygen
name all planets in order (not including dwarfs)
what is Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus,Neptune
Energy that could cause change in the future
what is potential energy
The force attraction between any 2 objects
what is gravity
bending of light
what is refraction
This landform has water on 3 sides
what is peninsula
A _____ is a frozen mass that orbits the sun
what is comet
describes materials that do not let any light pass through
what is qpaque
A push or pull that acts on an object
what is force
These are animals that have a backbone or spine
what is vertebrate
An _________ is a living thing
what is organism
A piece of a meteor that lands on Earth is called a _____
what is meteorite
The back and fourth motion of an object
what is vibration
The force that requires 2 objects to touch
what is contact force
An imaginary line around which an object spins
what is axis
what is the role of a decomposer
what is to break down dead materials
a natural object that revolves around a planet
what is moon
energy due to motion
what is kinetic energy
The force that acts at a distance
What is non-contact force
what is a bunch of food chains mixed together?
what is food web
______ is the study of living things
what is biology
one full orbit around the sun
what is Revolution
''True or false'' Energy has the ability to do work or cause change?
what is true