7th Grade Unit 6 Review

What energy transformation occurs as a rabbit eats grass?

• Chemical energy in the grass is transformed into thermal energy in the rabbit.

• Electrical energy in the grass is transformed into thermal energy in the rabbit.

• Mechanical energy in the rabbit is transformed into electrical energy in the grass.

• Thermal energy in the rabbit is transformed into mechanical energy in the grass.

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NGSS.MS-LS2-3

NGSS.MS-LS1-7

Based on the model, which consumers would receive the least amount of energy captured by the producers in their food chains?

• Eucalyptus trees

• Ring-tailed opossums

• Chuditch

• Wedge-tailed eagles

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NGSS.MS-LS2-3

The process of photosynthesis enables plants to sustain themselves by creating —

• carbon dioxide

• water vapor

• chlorophyll

• glucose

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following foods chains correctly shows a flow of energy found in this food web?

• Wildebeests → ticks → cheetahs

• Ticks → elephants → young tree leaves

• Elephants → young tree leaves → wildebeests

• Grass → wildebeests → cheetahs

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NGSS.MS-LS2-3

NGSS.MS-LS2-1

A partial food chain is shown below.

seeds → finch → snake → Z

Which organism could replace the letter Z to correctly complete the food chain?

• Hawk

• Grasshopper

• Shark

• Pine tree

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NGSS.MS-LS2-3

Which of the following correctly shows a flow of energy through the food web?

• Mouse → snake → wolf

• Hawk → mouse → wolf

• Rabbit → wolf → hawk

• Mouse → snake → hawk

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NGSS.MS-LS2-3

Which of the following correctly shows flow of energy in this environment?

• oak tree → snake → mouse → eagle

• snake → mouse → eagle → oak tree

• eagle → snake → mouse → oak tree

• oak tree → mouse → snake → eagle

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which sentence best describes how energy flows through this pyramid?

• The organisms at the bottom level provide energy directly to organisms in all the other levels.

• Energy is transferred from organisms in one level to those in the level above.

• The energy lost at each level is consumed by organisms in the top level

• Energy is transferred down each level of the energy pyramid.

Tags

NGSS.MS-LS2-3

When a person eats more calories than the body needs, this energy is —

• converted into electrical energy and then stored as mechanical energy.

• converted into light energy and then stored as kinetic energy.

• stored as mechanical energy in proteins that can later be transformed into potential energy

• stored as potential energy in fat that can later be transformed into kinetic energy.

Tags

NGSS.MS-LS1-7

The picture below shows a firefly with structure X glowing.

Which of the following explains why X is glowing?

• Mechanical energy is transformed into electrical energy.

• Chemical energy is transformed into light energy.

• Light energy is transformed into chemical energy.

• Chemical energy is transformed into mechanical energy