What is a hypothesis?

• An educated guess

• An opinion

• A proposed explanation that gets tested

• All the controlled experiments

A scientist wants to determine whether something is living or non-living. Which of the following is a characteristic that a scientist could use to tell if something is living?

• The object can move

• The object is made of cells with DNA

• The object gets bigger over time

• The object gets smaller over time

Tags

NGSS.MS-LS1-1

The ____________________ variable is what is tested in an experiment and controlled by the scientist.

• Independent

• Dependent

• Fixed

• Controlled

Tags

NGSS.MS-PS2-2

The results of an experiment that the scientist does not have control over

• Independent variable

• Dependent variable

• Fixed variable

• Controlled variable

Which sphere contains all the liquid and frozen water on the Earth?

• Hydrosphere

• Biosphere

• Atmosphere

• Geosphere

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Which sphere has all the living things on Earth?

• Biosphere

• Geosphere

• Hydrosphere

• Atmosphere

Which sphere is made of all the gasses that surround the Earth?

• Biosphere

• Hydrosphere

• Atmosphere

• Geosphere

Which statement best describes climate?

• Long term condition in the environment

• Temporary condition in the environment

• Permanent condition in the environment

• Climate and weather are the same

Tags

NGSS.MS-ESS2-6

Climate includes…

• Temperature, wind, and time of year

• Temperature, wind, and rain

• Wind, rain, and time of year

• Wind, rain, and, latitude

Tags

NGSS.MS-ESS2-6

Non-living factors in an ecosystem are known as...

• Biotic

• Biosphere

• Abiotic

• Organisms

Tags

NGSS.MS-LS2-3