Leap Science

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

NGSS.MS-PS3-5

Turner is investigating the conservation of matter. He puts a small rock in a plastic bag and seals it. He then hits the rock with a hammer. He observes that the rock breaks into small pieces and that dust coats the inside of the bag. Which observation BEST shows that matter is conserved?

• The mass of the dust plus the mass of the small pieces of rock equals the mass of the original rock.

• The mass of the dust equals the mass of the small pieces of rock plus the mass of the original rock.

• The mass of the small pieces of rock minus the mass of the dust equals the mass of the original rock.

• The mass of the dust plus the mass of the small pieces of rock is greater than the mass of the original rock.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which statement best supports the answer to Question 3?

• Because the nutria eat the cordgrass, the diamondback terrapin has fewer plants to eat.

• Because the nutria eat the cordgrass, the periwinkle has less of its main food source available.

• Because the otters lose the ability to hide in the cordgrass, their predators are more likely to prey on them.

• Because the cordgrass provides less shade, the sheepshead minnows are easier for the herring gulls to see and catch.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Review the text and fill in the blank. Each stage of the human life cycle _______________________.

• lasts the same length of time.

• is marked by many changes.

• is very similar to the one before.

• is different for each person.

What do vertebrates have that invertebrates don't have?

• legs

• wings

• backbone

• tail

Which is an example of an inherited trait?

• The ability to ride a bike.

• Having good manners.

• The ability to play an instrument.

• Eye color.

Tags

NGSS.MS-LS3-2

Where do inherited traits come from?

• pets

• children

• the environment

• parents

Tags

NGSS.MS-LS3-2

Review the chart. Which animal has the shortest gestation period?

• A giraffe

• An elephant

• A sheet

• A wolf