Nature of Science
Earth in Space & Time
Earth Structures
Earth Systems & Patterns
Properties & Changes in Matter
100

In an experiment, what is the part that is changed on purpose?

What is the test variable.

100

What causes day and night on Earth?

What is Earth’s rotation.

100

What type of rock forms from melted magma or lava?

What is igneous rock.

100

What is the process when liquid water changes into water vapor?

What is evaporation.

100

Which state of matter keeps its shape?

What is a solid. 

200

What is the group used for comparison in an experiment?

What is the control group.

200

What movement of Earth causes one year to pass?

What is Earth revolving around the Sun.

200

What breaks rocks into smaller pieces but does not move them?

What is weathering.

200

What forms when water vapor cools and turns back into liquid droplets?

What is condensation.

200

What tells how much matter is in an object?

What is mass.

300

Why should scientists repeat an experiment several times?

What is to make sure the results are reliable. 

300

Why does the Sun look bigger and brighter than other stars?

What is because it is closer to Earth.

300

What moves soil and rock from one place to another?

What is erosion.

300

What type of cloud usually brings thunderstorms?

What is cumulonimbus.

300

What kind of change happens when ice melts into water?

What is a physical change.

400

What do scientists use to support their conclusions?

What is evidence.

400

Why can people see different stars in different seasons?

What is because Earth moves around the Sun.

400

What kind of resource can be used again and again, like wind or sunlight?

What is a renewable resource.

400

Which weather factor tells how warm or cold the air is?

What is air temperature.

400

When two solids are mixed but not changed into something new, it is called a…

What is a mixture.

500

Looking at a picture and saying “I see dark clouds” is an example of what?

What is an observation.

500

What phase of the Moon is seen when the lit side is facing Earth?

What is a full moon.

500

Which property describes how shiny or dull a mineral looks?

What is luster.

500

Why are oceans important to the water cycle?

What is because most evaporation happens from oceans.

500

Why does sugar dissolve faster in hot water than cold water?

What is because higher temperature speeds up dissolving.