#7/ Science

Select the arrow shows the movement that causes day and night on Earth?

Tags

NGSS.MS-ESS1-1

Two wires carrying electricity can create a spark if they come too close together. This spark can start a fire. Wires carrying electricity are usually covered with plastic to keep them from starting a fire. Why does the plastic keep the electricity from starting a fire?

• Plastic is a good insulator

• Plastic can melt when heated.

• Plastic is softer than wire.

• Plastic conducts electricity.

Lasers produce a beam of light that can be focused on a small area. A teacher uses two mirrors to shine a beam of light from a laser onto a box. Which diagram shows how the teacher should position the two mirrors?

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Tags

NGSS.MS-PS4-2

Which type of organism is the producer?

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-2

NGSS.MS-LS2-3

• Causes large amounts of soil to move at once

• Usually happens rapidly

• Can be caused by earthquakes or volcanoes

• Can change the direction of creeks and streams

Which landform is described?

• Canyon

• Delta

• Landslide

• Sand Dunes

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

All the lightbulbs in this circuit are lit.

Which change would cause all the bulbs to go out?

A student observing birds in a park records some ways that birds interact with living and nonliving parts of their environment. All the following observations are ways that a bird interacts with nonliving parts of its environment except —

• responding to cold temperatures by fluffing its feathers

• feeding insects to its chicks

• drinking and taking a bath in a puddle of water

• reacting to morning sunlight by singing

Tags

NGSS.MS-LS1-8

Tropical climates have warm temperatures and abundant sunlight all year. What must be available for plants in these climates to make their own food throughout the year?

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

A student was asked to compare the masses of four blocks that were all the same size but made of different materials. The student used a balance to compare the masses of two blocks at a time. The student repeated this process three more times with different pairs of blocks and recorded observations.

Which list shows the blocks in order from least to greatest mass?

• Blocks N, M, L, P

• Blocks P, M, L, N

• Blocks N, L, M, P

• Blocks P, L, M, N

In this food web, energy is transferred directly between -

• conifer seeds and red crossbills

• conifer leaves and northern goshawks

• blue grouse and wolves

• elk and sharp-shinned hawks

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3