Study for the Energy in Ecosystems Science Test

Jack drew a model to show how matter moves in an ecosystem, as shown. Which statement is supported by Jack's model?

• Organisms get gases and water from the environment.

• Matter moves among organisms and the environment.

• Nutrients in soil

• Matter comes from the Sun for all organisms in the environment.

Tags

NGSS.MS-LS2-3

The image is a simple model of how energy flows through a forest food chain. Scientists know a hawk can fly between 20-40 miles per hour. Where does the hawk get the energy that is used to fly?

• The hawk got its energy from the snake. That energy is not connected to the sun.

• The hawk got its energy from the grass, which got its energy from the sun.

• The hawk got its energy from eating the snake. The snake ate the mouse, the mouse ate the grasshopper that ate green plants. The green plants go their energy from the sun.

• The hawk got its energy directly from the Sun.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Some tropical plants live high up in the branches of trees instead of growing in the ground. Which claim is supported by how these plants use their roots and leaves?

• Plants get the materials needed for growth mostly from air and water.

• Plants get the materials needed for growth mostly from soil and by growing on other plants.

• Plants grow faster with leaves that store water than with leaves that do not store water.

• Plants grow faster with roots that get water from air than with roots that get water from soil.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Ricky notices that an organism most important for energy flow is missing from this model. Which organism best completes the model and why?

• snake, because it can eat rabbits for energy

• Caterpillar

• Fox

• grass, because it captures energy from the sun

Tags

NGSS.MS-LS2-3

Carl drew this model. Which claim does Carl's model support?

• The Sun's heat energy causes living things to move.

• Sunlight provides heat for plants to grow and for animals to stay warm.

• Animals use energy that comes originally from the Sun.

• Control of body temperature

Tags

MO.SCI.6-8.LS1.C.1

Look at the data from the experiment.

Select TRUE or FALSE for the sentence below.

The plant weighed the same at the start and end of the experiment.

• True

• False

Tags

NGSS.MS-LS1-5

Anton investigates the materials that plants need for growth. He divides 30 plants that are the same type and size into three equal groups. The graph shows the results of Anton's investigation after two weeks.

Which claim about the materials needed for plant growth is supported by the data in the graph?

• Plants grow best with air and water.

• Plants need soil and air more than water to grow.

• Plants grow best with nutrients from soil.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Look at results of the experiment.

Select TRUE or FALSE for the sentence below.

The soil weighed the same at the start and end of the experiment.

• True

• False

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

Gills, lungs, or skin can be used to exchange oxygen and carbon dioxide in amphibians. What human organ is most responsible for exchanging oxygen and carbon dioxide?

• organ 1

• organ 2

• organ 3

• organ 4

Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6