Human Body Systems
Force and Motion
Matter
Weather
Ecosystems
100

This system includes your heart and blood vessels and moves blood around your body.

What is the Circulatory System 

100

A push or pull that can make an object move.

What is a force?

100

Anything that has mass and takes up space.

What is matter?

100

The condition of the atmosphere at a certain time and place.

What is weather?

100

A community of living and nonliving things that work together.

What is an ecosystem?

200

This body system is made up of bones and gives your body shape and support.

What is the skeletal system?

200

The force that slows objects down when they rub against each other.

What is friction?

200

The three main states of matter.

What are solid, liquid, and gas?

200

Water falling from the sky as rain, snow, sleet, or hail is called ___.

What is precipitation?

200

An organism that makes its own food from sunlight.

What is a producer?

300

This system helps your body take in oxygen and get rid of carbon dioxide.

What is the respiratory system?

300

When something stays at rest or keeps moving unless a force acts on it.

What is inertia?

300

This state of matter has a definite shape and volume.

What is a solid?

300

A tool that measures temperature.

What is a thermometer?

300

An animal that eats plants or other animals.

What is a consumer?

400

These are the parts of your body that pull on bones to help you move.

What are muscles?

400

The amount of force needed to move an object depends on its mass and acceleration. This is explained by this scientist’s second law.

What is Newton's Second Law of Motion?

400

This state of matter has a definite volume but no definite shape.

What is a liquid?

400

A giant, spinning storm with strong winds and heavy rain that forms over warm ocean water.

What is a hurricane?

400

A place where an organism lives and gets what it needs to survive.

What is a habitat?

500

This system includes your brain, spinal cord, and nerves, and controls everything you do.

What is the nervous system?

500

When two forces acting on an object are equal in size but opposite in direction, they are called ___

What are balanced forces?

500

This state of matter has no definite shape and no definite volume.

What is a gas?

500

The type of cloud that is fluffy and looks like cotton.

What is a cumulus cloud?

500

An organism that breaks down dead plants and animals.

What is a decomposer?

600

Your stomach and intestines are part of this system that breaks down food.

What is the digestive system?

600

The more mass an object has, the more of this it has too

What is weight?

600

When a liquid turns into a gas, it is called ___.

What is evaporation?

600

The movement of water through Earth's atmosphere and surface, including evaporation and precipitation.

What is the water cycle?

600

All the nonliving things in an ecosystem are called ___.

What are abiotic factors?

700

This system protects your body from illness by fighting off germs.

What is the immune system?

700

The force that pulls objects toward the Earth.

What is gravity?

700

The amount of space an object takes up is called its ___.

What is volume?

700

A scientist who studies and predicts the weather.

What is a meteorologist?

700

 A diagram that shows how energy moves from one living thing to another.

What is a food chain?

M
e
n
u