Science Leap Review

Nutria are non-native aquatic rodents that eat smooth cordgrass. Nutria can quickly disrupt a saltwater marsh ecosystem. Select the organism whose population would most likely decrease FIRST if nutria were to move into the saltwater marsh ecosystem.

• blue crab

• otter

• periwinkle

• sheepshead minnow

• diamondback terrapin

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A student predicted that when the smooth cordgrass is planted in the berm, it will be ______________________ cordgrass planted in the high marsh. This is because compared to the high marsh, the berm ______________________.

• taller than, has less soil

• shorter than, has more salt in the water

• taller than, has more salt in the water

• shorter than, has less soil

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A landslide can happen when a slope becomes unstable. One way the slope can become unstable is if _______________________ cause the rocks and soil that make up the ________________________ to become loose and easy to move. Another way the slope can become unstable is if heavy rainfall or freezing ice pushes rocks and soil apart. This shows an interaction between parts of the ____________________________.

• burrowing animals in the biosphere/ geosphere/ geosphere and hydrosphere

• ocean waves in the geosphere/ biosphere/ atmosphere and geosphere

• earthquakes in the atmosphere/ hydrosphere/ biosphere and hydrosphere

• strong winds in the hydrosphere/ atmosphere/ biosphere and geosphere

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

The image shows a pond ecosystem.

Which matter from the ecosystem do water weeds need to get so they can make their own food?

• scales from the fish

• water from the pond

• nutrients from the pond mud

• waste materials from the snail

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Students observe that their shadows change appearance during the day. At noon, the students observe that their shadows are _____________________ because the sunlight is coming from _____________________.

• dim, the horizon

• short, overhead

• bright, between the horizon and overhead

• long, between the horizon and overhead

Tags

NGSS.MS-ESS1-1

What is the primary source of energy for food webs and food chains?

• producer

• consumer

• water

• Sun

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which situation BEST models how the Sun appears larger than other stars?

• People who are close to you have more mass than people who are farther away.

• Trees that are close to you appear taller than the trees that are farther away.

• Houses that are close to you appear smaller than houses that are farther away.

• Mountains that are close to you have a greater volume than mountains that are farther away.

What observations can be used as evidence to support his claim?

• rain falling from the clouds

• leaves moving on a windy day

• blowing into a balloon to inflate it

• temperatures rising on a sunny day

• tossing a basketball through the air

Tags

NGSS.MS-ESS2-5

NGSS.MS-PS3-1

What kind of data should the scientist collect to determine whether the ice sheet is changing size?

• Measure the depth of the ice sheet for several months.

• Measure the mass of the ice sheet for several weeks.

• Measure the area and thickness of the ice sheet for several years.

• Measure the width of the ice sheet from satellite images for several days.

Tags

NGSS.MS-ESS2-4

Coach Vance coaches the 5th grade soccer team at Caddo Lake Elementary. He asks two students to help him prepare for practice and inflate the soccer ball to at least 420 grams but no more than 450 grams. The two students measure the mass of the ball when it was deflated and when it was inflated. Part B: Which of the following best describes the particles of matter in the inflated soccer ball?

• The soccer ball changes shape and the different shape causes the ball to have more mass.

• The outside of the soccer ball is thicker, has more mass, and is made of solid particles.

• The air that is added to the soccer ball is made of unseen particles that move and fill the space inside of the soccer ball. This causes the soccer ball to have more mass.

• The air that is added to the soccer ball is made of unseen particles that become very large and remain in a fixed position. This causes the soccer ball to have more mass.

Tags

NGSS.5-PS1-1

NGSS.5-PS1-2

NGSS.5-PS1-3