4.ESS1.2a and 4.ESS1.2b

1. A student observes the shadow of a tree at two different times during the day.

Which of these causes the length and direction of the shadow to change?

• the rotation of Earth on its axis

• the amount of light given off by the sun

• the distance between Earth and the moon

• the revolution of Earth in orbit around the sun

Tags

NGSS.MS-ESS1-1

2. Jenny knows that when it is daytime on one part of the Earth, it is nighttime on another.

What makes daylight turn to darkness?

• the rotation of Earth

• the tilt of Earth on its axis

• Earth revolving around the Sun

• the Sun traveling away from Earth

Tags

NGSS.MS-ESS1-1

3. The graph shows the lengths of a shadow formed at different times of the day.

Based on the graph, which statement is correct?

• The length of the shadow is shortest in the morning because the Sun appears low in the sky.

• The length of the shadow is the shortest at noon because the Sun is directly overhead.

• The length of the shadow increases throughout the day as the Sun moves higher in the sky.

• The length of the shadow decreases throughout the day as the Sun moves lower in the sky.

Tags

NGSS.MS-ESS1-1

3. A student creates a model of the positions of the Sun and Earth in space. Cities on Earth are labeled A-D. Which city on the model is experiencing day?

• city A

• city B

• city C

• city D

Tags

NGSS.MS-ESS1-1

4. A student is standing outside at 2:15 pm and observes his shadow. What would happen to the student's shadow if he came and stood at the same place at 4:30 pm?

• His shadow will be shorter.

• His shadow will be longer.

• His shadow will be the same size.

• His shadow will be behind him.

Tags

NGSS.MS-ESS1-1

5. Students create a model to observe the effects of the Sun of Earth. Their model contains a globe and a lamp. One of the students rotates the globe while the lamp remains motionless.

Which of the following is best represented by the students' model?

• how shadows form

• one calendar year (365 days)

• day and night

• four seasons (winter, spring, summer, fall)

Tags

NGSS.MS-ESS1-1

6. A student measures the length of the shadow of a stick at three different times. The measurements are recorded in a table.

Which statement best explains the different shadow lengths between 8 a.m. and 12 p.m?

• The position of the Sun in the sky remained low.

• The position of the Sun in the sky remained high.

• The position of the Sun in the sky changed from low to high.

• The position of the Sun in the sky changed from high to low.

Tags

NGSS.MS-ESS1-1

7. The diagram shows a food web in an ecosystem. The removal of which organism would result in the MOST damage to the ecosystem?

• fox

• rabbit

• grasshopper

• grass

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

8. The map below shows four locations where fossil plants were found. The table shows the habitat where these plants grew in the past. In which area on the map was there previously an ocean?

• location A

• location B

• location C

• location D

Tags

NGSS.MS-ESS2-3

9. The model shows the four layers of Earth. What is the composition of the thickest layer?

• it is molten rock

• it is made of mostly oxygen and silicon, and it supports life

• it is made of iron and nickel, and it is very dense

• it is made of various types of gases