Semester Exam 7th Grade Science - Part A

In the diagram below, where is light energy converted to chemical energy?

• grass

• hawk

• grasshopper

• sun

Tags

NGSS.MS-LS1-6

A test tube is filled with water and a green plant called elodea. When the plant is exposed to sunlight, it begins to produce bubbles. Which of the following is the most likely conclusion for the identity of the gas in the bubbles?

• oxygen

• carbon dioxide

• nitrogen

• hydrogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram provided illustrates the process of photosynthesis, including the substances used by and produced by plants.

What is the identity of the chemical represented by the question mark in the diagram?

• nitrogen

• carbon

• hydrogen

• glucose

Tags

NGSS.MS-LS1-6

What is the difference in oxygen production after 45 minutes- from low light to high light?

• 1.1

• 0.7

• 3.5

• 3.2

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

What kind of damage do hurricanes most likely do?

• trees get uprooted far inland

• birds become extinct

• new marshland gets created

• a storm surge kills plants near the shore

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

Which of the following characteristics is shared by both primary and secondary consumers?

• The first step in any food chain diagram.

• Gains energy by eating other living things.

• Eats only plants to gain needed energy.

• Uses the Sun’s radiant energy to produce food.

Tornadoes are catastrophic events that create change in ecosystems in which of the following ways?

• Wildfires started by lightning reduce carbon dioxide.

• Heavy flooding increases areas where trees can grow.

• High winds damage areas of important plant life.

• Landslides underwater causing tsunami along the coast.

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

At which level of the energy pyramid would most of the biomass be found?

• carnivore

• top predator

• producer

• herbivore

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which catastrophic event tends to carve out a relatively straight pathway of damage?

• tornado

• flood

• hurricane

• earthquake

Tags

NGSS.MS-ESS3-2

A diagram of a marine food chain is provided.

Which of the organisms in the food chain transforms energy from the Sun into food?

• marlin

• large sharks

• phytoplankton

• shrimp

Tags

NGSS.MS-LS1-6