A sign makes a shadow on the playground. Mary drew the shadow at 2:00 p.m. and 4:00 p.m.

• As Earth gets closer to the sun, shadows become shorter.

• The distance between Earth and the sun changes during the day.

• As the sun gets brighter, the size of the shadow made by the signpost increases.

• The angle between the sun and the signpost changes during the day.

Tags

NGSS.MS-ESS1-1

Sahra does the same investigation as Lucca, but she lives in Texas. Some of her data are missing.

Choose the times to correctly complete the table.

a

c

7:26

8:08

7:49

8:27

7:30

Tags

NGSS.MS-PS2-2

Choose the correct statement(s) about the sun. Choose all that apply.

• The sun is a planet.

• The sun gives off its own light.

• The sun is larger than all the planets and stars. 

• The sun is closer to Earth than to the star Polaris.

What determines the length of a planet’s day?

• tilt

• orbit

• moon

• rotation

Which cycle seen on Earth is the girl studying with this model?

• day and night

• seasons

• the phases of the moon

• low tide and high tide

Tags

NGSS.MS-ESS1-1

The table shows the distance from Earth in light-years and the visible brightness of some stars. The visible brightness for one of the stars is missing. Julia claims that a smaller visible brightness number means that the star looks brighter. Predict the missing data for the visible brightness of star Y.

• 0.008

• 0.46

• 0.0003

• 0.06

Which set of pictures shows the correct order of moon phases?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-1

A telescope took a picture of four stars. 

Each star is the same size and type. Which star is closest to Earth?

• star 1

• star 2

• star 3

• star 4

Tags

NGSS.MS-ESS1-3

Zach looks for Orion, a star pattern, in the night sky. He looks at 9:00 p.m. every month. He notices that Orion changes position in the sky. Some months he cannot see it at all. The table shows his observations. Some months are missing observations.  In which of these months would Zach be likely to see Orion?

• February and June

• June and August

• August and December

• December and February

Tags

NGSS.MS-ESS1-1

During the winter, there are ​​ (a)   hours of sunlight. The number of hours of sunlight ​ (b)   from ​ (c)   to ​ (d)   .

• fewer
• increases
• December
• June
• more
• stays the same
• less

Tags

NGSS.MS-ESS1-1