Living Things
Ecosystems
Matter and Energy
Forces and Motion
Random
100

The units that compose all living things

What are cells?
100

The scientific name for a living thing

What is an organism?

100

This makes up all things

What is matter?

100

A factor that affects the motion of an object

What is gravity (or friction or mass)

100

The cause of day and night on Earth

What is the rotation of the Earth?

200

The system in your body that is responsible for breaking down the food you eat

What is the digestive system?

200

An area made up of living and non-living things

What is an ecosystem?

200

Smallest unit of an object

What is an atom?

200

The greater an object's _____________ is, the more the object will weigh

What is mass?

200

The remains of organisms that lived long ago

What are fossils?

300

The system that is responsible for breathing

What is the respiratory system?

300

A living thing that eats something else 

What is a consumer?

300
Heat transfers from one place to another

What is conduction?

300

The action of one object rubbing against another

What is friction?

300

Current scientist who created a science program for kids

Who is Bill Nye?

400

The body system responsible for bone structure and support

What is the skeletal system?
400

An area made up of trees where living things exist

What is a forest?

400

The main source of the Earth's radiation

What is the sun?

400

How fast an object is traveling

What is speed (or velocity)?
400

Scientist known as the father of modern astronomy

Who is Galileo?