TNReady Review 6th Science

Unlike on planets such as Venus and Mars, which gas makes up most of Earth’s atmosphere?

• oxygen

• nitrogen

• water vapor

• carbon dioxide

What is a population?

• a group of different species living in the same area

• a group of different species living in separated areas

• a group of individuals of the same species living in the same area

• a group of individuals of the same species living in separated areas

Maria made four solutions using different amounts of salt and different volumes of water. Which of Maria’s solutions has the highest concentration of salt?

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Tags

NGSS.MS-PS1-2

Which of the following organisms is most likely to be a pioneer species in an ecosystem?

• a tall tree

• moss

• a shrub

• a mouse

Which type of energy involves harnessing heat produced within Earth to generate electricity?

• solar energy

• nuclear energy

• geothermal energy

• hydroelectric energy

What is the role of a photovoltaic cell in harnessing energy for people to use?

• It converts solar energy into electricity.

• It heats water that can be used to warm buildings.

• It reflects energy away from Earth and toward space.

• It uses the energy of moving water to rotate a turbine.

Runoff is most like which of the following?

• a puff of steam

• a flowing stream

• a cloud in the sky

• an invisible form of water

Tags

NGSS.MS-ESS2-4

Which of the following has elastic potential energy?

• a vase sitting on a shelf

• a stretched rubber band

• a child moving down a slide

• sugars stored in the molecules of food

A student is going to compress the object shown in the diagram. Which form of energy will the object gain when it is compressed?

• chemical

• electrical

• mechanical

• electromagnetic

How might acid rain harm the environment?

• It traps heat near Earth’s surface.

• It causes coal to burn less efficiently.

• It lowers the pH of bodies of water on the ground.

• It allows harmful radiation from the sun to reach Earth.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4