Force and Motion
Light Waves
Thermal Energy
Ecosystems
Weather
100

The force that pulls objects towards the center of the earth.

What is gravity?

100

When light bounces off an object. 

What is reflection?

100

The total energy of all particles in a substance. 

What is thermal energy?

100

There are more producers present in the area so there would be _________ consumers present.

What is more?

100

The scientific term for the amount of water vapor in the air. 

What is humidity?

200

The energy of motion.

What is kinetic energy?
200

When light passes through an object. 

What is transmission?

200

The measurement of the average kinetic energy of particles in a substance. 

What is temperature?

200

There is less available food for predators so their population ____________. 

What is decreases?

200

This process occurs when water vapor cools and turns into liquid water.

What is condensation?

300

The force that slows down a parachute as it falls.

What is air resistance?

300

When light hits an object and does not pass through. 

What is absorption?

300

The reason ice melts when placed in a warm drink.

What is energy transfer from the drink to the ice?

300

The relationship between rainfall and acorn production. 

What is more acorns are produced in years with many days of heavy rainfall?

300

The layer of the atmosphere where almost all weather occurs. 

What is the trophosphere?

400

At the highest point of a roller coaster, the cart has the most of this type of energy.

What is potential energy?

400

The amount of energy a light wave has depends on this property of the wave. 

What is frequency (or wavelength)?

400

The direction thermal energy always moves. 

What is from hot to cold?

400

This type of organism makes its own food using sunlight through photosynthesis. 

What is a producer?

400

This type of front forms when a cold air mass pushes a warm air mass upward, often causing thunderstorms. 

What is a cold front?

500

A shopping cart gets bumped, and hits a parked car. After it hits the car, the cart moves backwards. Why did the shopping cart change direction after hitting the parked car?

What is the force of the shopping cart changes direction?


500

Light waves do not need this to travel, unlike sound waves. 

What is a medium (or matter)?

500

The process that keeps Earth's atmosphere warm by trapping heat. 

What is the greenhouse effect?

500

The variety of life in an ecosystem, including different species of plants, animals and microorganisms. 

What is biodiversity?

500

The term for a large body of air with uniform temperature and humidity.

What is an air mass?

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