Cells
Earth's spheres
Natural disasters
Natural resources
Scientific method
100

What is the basic unit of life?

cell

100

What are Earth's four main spheres?

Atmosphere, Hydrosphere, Geosphere, Biosphere

100

What is the term for breaking down rocks?

weathering

100

What is something found in nature that people use to survive?

natural resources

100

What is a step-by-step process for solving a problem called?

scientific method

200

What tool is used to see cells?

microscope

200

Which sphere contains all living things?

Biosphere

200

What is the term for the movement of weathered material?

erosion

200

This resource is used more rapidly than it is produced?

nonrenewable resource

200

What is the first step in the scientific method?

Observation/question

300

What structure controls the activities of the cell?

nucleus

300

Which sphere contains soil and mountains?

Geosphere

300

What is the term for dropping sediment in a new place?

deposition
300

This resource will never be used up?

inexhaustible

300

What is an educated guess?

hypothesis

400

What is the function of the cell membrane?

controls what enters and leaves the cell.

400

Plants are part of which sphere?

Biosphere
400

Water freezing and breaking down a rock is what type of weathering?

physical

400

Diesel fuel is what type of resource?

nonrenewable

400

Which step follows the hypothesis?

experiment

500

Which scientist first observed cells?

Hooke

500

What three spheres are involved in the water cycle?

Hydrosphere, Geosphere, Atmosphere

500

A car rusting is an example of what type of weathering?

chemical

500

Diamonds are what type of resource?

nonrenewable

500

The part of the experiment that can be changed is called what?

variable