Science 6 Benchmark

Jose conducted an experiment to measure the rate of minerals dissolving in water and changed the temperature of the water for each trial. What is the independent variable in this experiment?

• number of trials being tested

• temperature of the water

• type of minerals used for each trial

• rate the minerals dissolved

How could a farmer keep a hillside from eroding during a rainy season?

• Build trails around the edges for people to walk

• Plant crops and trees to hold the soil in place

• Plow the topsoil of the hillside to loosen the dirt

• Let livestock graze on the hill each day

Tags

NGSS.MS-ETS1-3

Identify each example of a nonrenewable energy source.

• Petroleum

• Natural gas

• Coal

• Geothermal

• Biomass

Tags

NGSS.MS-ESS3-4

Please select the statement below that is true.

• All of the natural resources are renewable.

• Some of these energy sources are renewable and some are non-renewable.

• All of the natural resources are created through human techniques.

• All of the natural resources are nonrenewable.

The energy source of the water cycle is step number —

• 2

• 4

• 5

• 1

Tags

NGSS.MS-ESS2-4

Read the hypothesis: If coal is used to heat a school building, then the amount of air pollution around the building will increase. What is the dependent variable in this experiment?

• Amount of air pollution

• Type of resources

• Type of pollution

• Amount of coal used

Tags

NGSS.HS-ESS3-6

What is the reason some of the earth’s energy received from the sun returns back into space?

• it is reflected by the sun

• it is absorbed by the sun

• it is absorbed by clouds and the earth’s surface

• it is reflected by clouds and the earth’s surface

What energy transformation takes place when you turn on an electric light?

• Mechanical → light + heat

• Chemical → light + heat

• Chemical → electrical + heat

• Electrical → light + heat

Tags

NGSS.MS-PS3-5

The direct transfer of heat from one object to another through touching is called—

• radiation

• invection

• conduction

• convection

Which layer of the atmosphere contains ozone?

• Mesosphere

• Thermosphere

• Troposphere

• Stratosphere