WATER CYCLE
PLANETS
SOUND AND LIGHT
ECOSYSTEM
FORCE AND MOTION
100
The gas form of water
What is water vapor
100
One of the shapes the moon seems to have as it orbits Earth
What is phase
100
The number of vibrations per second
What is pitch
100
All of the living and nonliving things surrounding an organism
What is environment
100
The location of an object
What is position
200
The process by which a gas changes into a liquid
What is condensation
200
To travel in a closed path
What is revolve
200
The loudness of a sound
What is volume
200
All the individuals of the same kind living in the same ecosystem
What is population
200
A change of position of an object
What is motion
300
The process by which a liquid changes into a gas
What is evaporation
300
The closed path of one object in space around another object; or to move in such a path
What is orbit
300
The number of vibrations per second
What is frequency
300
All the populations of organisms living together in an environment
What is community
300
The measure of an object’s change in position during a unit of time
What is speed
400
Water that falls from clouds to Earth
What is precipitation
400
Everything that exists in space
What is universe
400
A back-and-forth movement of matter
What is vibration
400
A group of food chains that overlap
What is food web
400
The measure of the speed and direction of motion of an object
What is velocity
500
A measurement of the amount of water vapor in the air
What is humidity
500
A huge system of gases, dust, and many stars
What is galaxy
500
A lens that is thinner in the middle than at the edges
What is concave lens
500
The role of an organism in its habitat
What is niche
500
The property of matter that keeps an object at rest or keeps it moving in a straight line
What is inertia
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