PSSA science sampler 2024

• The predator population will stay the same in year 6 because the prey population will be extinct.

• The predator population will increase in year 6 because the prey population is increasing.

• The prey population will decrease in year 6 because the predator population is decreasing.

• The prey population will increase in year 6 because the predator population will be extinct.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

• Using wool is unsustainable because sheep require a lot of land.

• Using wool is sustainable because wool clothing can be thrown away.

• Using wool is unsustainable because recycling is not always possible for every item.

• Using wool is sustainable because wool clothing can benefit the land the sheep use.

Tags

NGSS.MS-LS2-3

The western tarnished plant bug and the whitefly are two types of garden and crop pests. Instead of using chemical pesticides, some gardeners and farmers plant marigold flowers as a natural pest repellent. How could this strategy improve outdoor environments?

• Planting marigolds costs less than using chemicals.

• Planting marigolds removes pollinators as well as other pests.

• Planting marigolds is a safe and attractive way to eliminate pests.

• Planting marigolds attracts different pests that are easier to eliminate.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The seat belts in a car are made from nylon. Nylon is a material that humans make from petroleum. Which statement is best supported by this information?

• Nylon is made from renewable natural resources.

• .Nylon is made from renewable synthetic resources.

• Nylon is made from nonrenewable natural resources.

• Nylon is made from nonrenewable synthetic resources.

Tags

NGSS.MS-PS1-3

• A chemical reaction occurred because a new substance was made.

• A chemical reaction occurred because the two liquids had different densities.

• A chemical reaction did not occur, because a change in state is evidence of only a physical change and not a chemical change.

• A chemical reaction did not occur, because the mass of the liquids before mixing was equal to the mass of the yellow solid.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A student wants to investigate how the mass of a toy car affects its motion. The student will use a ramp, a block, and four toy cars. Each toy car has a different mass. Which data should the student measure during this investigation?

• the length of each toy car

• the color and shape of each toy car

• the amount of force used to hold each toy car at the top of the ramp

• the distance each toy car pushes a small block placed at the end of the ramp

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

• It shows a full moon, which happens when the Moon rotates so its dark side faces Earth.

• It shows a new moon, which happens when the Moon rotates so its bright side faces Earth.

• It shows a solar eclipse, which happens when the Moon is directly between Earth and the Sun.

• It shows a lunar eclipse, which happens when the Moon is directly between Earth and the Sun.

Tags

NGSS.MS-ESS1-1

• The moon is traveling too slowly relative to its size.

• The force of gravity is shown acting in the wrong direction.

• The orbital path should be shown as straight instead of curved.

• The labels for “speed” and “orbital path” should switch positions.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

• The cave forms slowly because water must flow through rock layers many times for the rock to dissolve.

• The cave forms slowly because solid rock layers at the surface prevent water from seeping into the layers underground.

• The cave forms quickly because large amounts of water enter the opening when a sinkhole forms at the surface.

• The cave forms quickly because fast-moving water erodes rock rapidly and causes rock fractures to increase in size.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

• The “identify the problem” step would be different because it is not possible to identify problems within computers.

• The “generate possible solutions” step would be different because this step is not needed for a bridge.

• The “create a model of the solution” step would be different because it is not possible to build a model of a bridge.

• The “test the model” step would be different because bridges and computers do not work the same way.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4