Big Idea

A ________________ is something that you change in an experiment. A factor that can be changed or controlled in order to test a hypothesis in a scientific experiment.

• variable

• prediction

• inference

• experiments

A _____________________is a variable that you keep

the same throughout the experiment. All of the things that are kept the same in an experiment for the control and test groups.

• prediction

• constant

• experiment

• model

Information about the natural world gathered through the senses and/or scientific instruments.

• Observation

• Inference

• Investigation

• Variable

Tags

NGSS.MS-LS1-8

A scientific test that is carried out under controlled conditions to answer a scientific question.

• Observation

• Inference

• Experiment

• Variable

Tags

NGSS.MS-PS1-2

The group in an experiment that serves as a comparison to the test group; untreated by the factor being tested.

• Predict

• Control Group

• Conclusion

• Observation

You need to do ______________________________ of your experiment so that you can validate your data. To repeat the test of an experiment multiple times to ensure valid data.

• conclusion

• repeated trials

• prediction

• control group

Information, such as observations or measurements, that can be tested and verified.

• Evidence

• Repeated Trials

• Conclusion

• Analyze

Water can move small rocks quickly along the bottom of a fast-flowing river. As they move, the rocks bump into and scrape against each other. Some of these rocks may settle at the bottom of the river as the water slows down. Here the rocks may become covered with sediments that pile up. Which of the following represents the weathering of these rocks?

• The bumping and scraping of the rocks.

• The movement of the rocks along the river.

• The settling of the rocks at the bottom of the river.

• The covering of the rocks with sediments that pile up.

Minerals have various physical properties. The illustration below shows a tool that is used to test a physical property of minerals. That physical property of a mineral is tested using this tool?

• color

• luster

• streak

• cleavage

Imagine that you are hunting for fossils. Which type of rock would you be investigating?

• igneous

• magma

• matamorphic

• sedimentary

Tags

NGSS.MS-LS4-1