Sundials and Shadows

A sundial is used to _____.

• measure distance.

• tell the time of day.

• tell the day of the year.

• measure the lengths of objects.

A student draws pictures of the same tree near her home at different times of the day. She sees that the tree’s shadow changes throughout the day. Based on her drawing, what claim and evidence BEST explains where the student is located?

• Southern Hemisphere because the shadow points south.

• Southern Hemisphere because the shadow points north.

• Northern Hemisphere because the shadow points north.

• Northern Hemisphere because the shadow points south.

Tags

NGSS.MS-ESS1-1

Hagen keeps a plant on his desk at home. He notices that the length of the plant’s shadow changes with the time of day. He measures and records the length of the shadows every hour. However, he takes a nap and skips the 2 P.M. measurement. His measurements are in the data table. Based on the pattern of data in Cory’s table, which is MOST LIKELY the correct measurement for 2 P.M.?

• 12 cm.

• 22 cm.

• 55 cm.

• 133 cm.

When Leah goes for walks with her family, her shadow sometimes makes her seem very tall. Other times, her shadow makes her look very short.

During what time of the day and year would Leah’s shadow appear longest?

• At noon on a summer day.

• At 8 a.m. on a summer day.

• At noon on a winter day.

• At 4 p.m. on a winter day.

Tags

NGSS.5-ESS1-2

Where on Earth can you stand for your shadow to point noticeably south?

• equator

• North Pole

• Northern Hemisphere

• Southern Hemisphere

Tags

NGSS.MS-ESS1-1

If Maitha stands outside all day and we mark the patterns of her shadow she would be part of a _______.

• sundial

• mooncall

• sunsmile

• day clock

Tags

NGSS.5-ESS1-2

How can a sundial project the time?

• a. through light

• b. through silver dust sparkle

• c. through the pattern of shadows

• d. through laser beams

What did ancient people use to tell the time?

• a. Rolex watch

• b. wall clock

• c. alarm clock

• d. sundials

Dark area caused when an object blocks light from falling on a surface

• movement

• night

• shadow

• stars

Tags

NGSS.5-ESS1-2

What is the primary function of a sundial?

• To measure temperature

• To tell the time of day

• To calculate distance

• To predict weather