In an experiment, what is the part that is changed on purpose?
What is the test variable.
What causes day and night on Earth?
What is Earth’s rotation.
What type of rock forms from melted magma or lava?
What is igneous rock.
What is the process when liquid water changes into water vapor?
What is evaporation.
Which state of matter keeps its shape?
What is a solid.
What is the group used for comparison in an experiment?
What is the control group.
What movement of Earth causes one year to pass?
What is Earth revolving around the Sun.
What breaks rocks into smaller pieces but does not move them?
What is weathering.
What forms when water vapor cools and turns back into liquid droplets?
What is condensation.
What tells how much matter is in an object?
What is mass.
Why should scientists repeat an experiment several times?
What is to make sure the results are reliable.
Why does the Sun look bigger and brighter than other stars?
What is because it is closer to Earth.
What moves soil and rock from one place to another?
What is erosion.
What type of cloud usually brings thunderstorms?
What is cumulonimbus.
What kind of change happens when ice melts into water?
What is a physical change.
What do scientists use to support their conclusions?
What is evidence.
Why can people see different stars in different seasons?
What is because Earth moves around the Sun.
What kind of resource can be used again and again, like wind or sunlight?
What is a renewable resource.
Which weather factor tells how warm or cold the air is?
What is air temperature.
When two solids are mixed but not changed into something new, it is called a…
What is a mixture.
Looking at a picture and saying “I see dark clouds” is an example of what?
What is an observation.
What phase of the Moon is seen when the lit side is facing Earth?
What is a full moon.
Which property describes how shiny or dull a mineral looks?
What is luster.
Why are oceans important to the water cycle?
What is because most evaporation happens from oceans.
Why does sugar dissolve faster in hot water than cold water?
What is because higher temperature speeds up dissolving.