STAAR Everything

Front

What force causes a wagon to stop?

Back

The force of friction which is acting in the opposite direction of the arrow.

Front

How many moon phases are there?

Back

There are 8 moon phases.

Front

What forms of energy are compared in an investigation to speed up evaporation?

Back

Mechanical energy and thermal energy.

Front

What benefit does a wide underground root system provide to a prickly pear cactus?

Back

By absorbing water and supporting the plant in loose, sandy soil.

Front

What is the definition of friction?

Back

Friction is a force that opposes the motion of an object.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward each other, such as the Earth pulling us down.

Front

What is evaporation?

Back

Evaporation is the process by which liquid water turns into water vapor.

Front

What is the role of sunlight in photosynthesis?

Back

Sunlight provides the energy needed for plants to convert carbon dioxide and water into glucose and oxygen.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.