Science

How might removing the alligators from a swamp habitat create a decrease in vegetation?

• Meat-eating animals would begin eating plants.

• The plants in the swamp would get more sunlight.

• Plants would not be able to spread their seeds.

• More plant-eating animals would survive.

Tags

NGSS.MS-LS2-1

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European rabbits were released into the Australian wild in 1859. They had no predators and found plenty of grasses, roots, fruit and seeds to eat. Rabbits likely impacted the Australian ecosystem in all of the following ways EXCEPT –

• decrease in number and types of local plants.

• fewer animals with a diet that includes plants.

• erosion of soil held in place by plants.

• longer time for plants to produce seeds.

Tags

NGSS.MS-LS2-1

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In a study of the habitat of a population of raccoons, scientists found that the number of raccoons actually increased where people built houses. What might the scientists conclude from this observation?

• Raccoons lost their natural source of water.

• Raccoons found more food living near people.

• The people brought many predators to the habitat.

• Building houses destroyed the raccoons’ habitat.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the atomic number of oxygen?

• 5

• Sandwich

• 8

• 17

Tags

NGSS.MS-PS1-1

Who was Dimitri Ivanovich Mendeleev?

• Periodic table inventor

• Sandwich

• A singer

• An Astronomer

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NGSS.MS-PS1-5

How long does it take for light to get from the Sun to the Earth?

• 150 million years

• 10 seconds

• 8 minutes

• Sandwich

Tags

NGSS.MS-ESS1-1

A black hole is formed when...

• After a supernova occurs

• When a white dwarf turns into a black dwarf

• When a black dwarf turns into a black dwarf

• Sandwich

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What is the molecular structure of table salt?

• Sandwich

• Molecular who?

• H2O

• NaCl

Tags

NGSS.MS-PS1-1

Biology is the study of what?

• Life

• Sandwich

• The human brain

• Weather

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NGSS.MS-LS1-1

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NGSS.MS-LS1-5

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Energy=____to the speed of light squared

• Gravity

• Mass

• Sandwich

• Lightning

Tags

NGSS.MS-PS3-1