Light and Shadow

The video tutorial explores the sun's brightness, its distance from Earth, and how sunlight consists of different colors. It discusses the heat from the sun, the importance of sunscreen, and how sunlight can cause evaporation. The Earth's rotation leads to day and night cycles, with shadows forming when objects block light. The moon reflects sunlight at night, while stars twinkle but provide little light. Natural light sources like the sun and moon are contrasted with man-made lights such as lamps and headlights. The video encourages viewers to experiment with light and shadows using a flashlight.

How long does it take for sunlight to reach Earth?

• About 8 days

• About 8 hours

• About 8 seconds

• About 8 minutes

What happens to the other side of the Earth when it is daytime on our side?

• It is always dark

• It is always sunny

• It is also daytime

• It is nighttime

What is a shadow?

• A type of natural light

• A reflection of light

• A dark shape made when light is blocked

• A bright light

How does the moon provide light at night?

• It uses energy from stars

• It absorbs sunlight

• It reflects sunlight

• It creates its own light

Which of the following is a man-made light source?

• A table lamp

• The moon

• Stars

• The sun