Earth’s Surface and Resources
Energy Forms and Uses
Earth and Space Systems
Properties of Matter
Living Organisms and Ecosystems
200

What are three natural resources?

Water, soil, and sunlight

200

What form of energy allows you to see things?

What is light energy?

200

What is the star at the center of our solar system?

What is the Sun?

200

What tool is used to measure temperature?

What is a thermometer?

200

What do we call animals that break down dead plants and animals?

What are decomposers?

400

What causes slow changes to Earth’s surface?

Weathering and erosion.

400

What kind of energy comes from the vibrations of particles and allows us to hear?

What is sound energy?

400

What tool is used to identify the position of stars and constellations?

What is a star chart?

400

What state of matter takes the shape of its container but has a definite volume?

What is a liquid?

400

What are the basic needs of all living things?

Food, water, air, and shelter.

600

How can people prevent soil erosion?

By planting trees or using mulch.

600

Which energy transformation happens in a toaster?

What is electrical to thermal energy?

600

What causes the seasons on Earth?

The tilt of the Earth's axis.

600

Which property of matter can be measured using a magnet?

What is magnetism?

600

What is a food web?

A system of interconnected food chains.

800

What is the difference between renewable and nonrenewable resources?

Renewable resources can be replaced; nonrenewable cannot be replaced quickly.

800

A solar panel collects what kind of energy?

What is solar (or radiant) energy?

800

What are the repeating patterns of the Moon called?

What are the moon phases?

800

What happens to most substances when they are heated?

They expand.

800

How do inherited traits help an animal survive?

They help the animal adapt to its environment.

1000

What is deposition?

The dropping or settling of sediments in a new location.

1000

What type of circuit is needed for electricity to flow?

What is a closed circuit?

1000

What is the difference between rotation and revolution?

Rotation is spinning on an axis (1 day); revolution is orbiting around the Sun (1 year).

1000

What is the density rule that determines if an object will sink or float?

If it’s more dense than water, it sinks; less dense, it floats

1000

Give an example of a structural adaptation.

Answers vary – webbed feet in ducks for swimming.