The Movement of Shadows

What causes a shadow to form?

• A source of light and an opaque object

• A source of light and a transparent object

• A source of light and a reflective object

• A source of light and a translucent object

Tags

NGSS.MS-PS4-2

Why do shadows change position during the day?

• Because the Earth rotates

• Because the sun moves around the Earth

• Because the moon blocks the sun

• Because the stars change position

Tags

NGSS.5-ESS1-2

What happens to your shadow when you walk away from a street light?

• It appears in front of you

• It disappears completely

• It stays behind you

• It gets shorter

Tags

NGSS.5-ESS1-2

What happens to the shadow of a lawn chair when the sun is directly overhead at noon?

• The shadow becomes longer and moves to the side.

• The shadow disappears completely.

• The shadow becomes smaller and appears below the chair.

• The shadow becomes larger and covers the entire lawn.

Tags

NGSS.5-ESS1-2

What is a sundial used for?

• Measuring temperature

• Telling time using shadows

• Predicting weather

• Navigating directions

What is the gnomon on a sundial?

• A type of clock

• A shadow-casting piece

• A type of star

• A planet

Who were the scientists that noticed planets move differently from stars?

• Isaac Newton and Albert Einstein

• Galileo and Nicholas Copernicus

• Marie Curie and Louis Pasteur

• Charles Darwin and Gregor Mendel

This is a large sundial located near Tower Bridge in London, England. As the Earth rotates on its axis, the sun appears to move across the sky. The center part in the sundial will then create a shadow from the sun. That shadow can be used to tell time. The circular part of the sundial is set up like the clocks that we’re familiar with. This one has round dots engraved along the border.

• A large clock tower

• A digital clock

• A large sundial

• A solar panel

Tags

NGSS.MS-ESS1-1

What is the meaning of the word "shadow"?

• A dark area or shape produced by a body coming between rays of light and a surface

• A bright light that illuminates an area

• A type of weather condition

• A loud noise

Tags

NGSS.4-PS4-2

What does the word "source" refer to?

• The beginning or origin of something

• A type of fruit

• A kind of animal

• A musical instrument