Understanding Sun's Energy and Its Absorption

The video explores how the Sun provides energy to Earth, focusing on how different surfaces like land and water absorb this energy at varying rates. It explains that while the Sun's energy is crucial for warming the Earth, only about 50% reaches the surface. Land, being darker, absorbs more heat compared to water, which reflects more energy. This concept is illustrated using a beach scenario, highlighting the differences in temperature between sand and water.

What does the Sun provide to Earth?

• Light and warmth

• Water and air

• Gravity and magnetism

• Clouds and rain

What percentage of the Sun's energy is absorbed by Earth's atmosphere and clouds?

• 30%

• 10%

• 20%

• 50%

How much of the Sun's energy is reflected back into space?

• 30%

• 40%

• 20%

• 10%

Which absorbs more of the Sun's energy, land or water?

• Neither

• Both equally

• Water

• Land

Why does sand feel hotter than water under the Sun?

• Water is colder

• Sand absorbs more heat

• Sand is closer to the Sun

• Water absorbs more heat

What happens to the Sun's energy when it hits water?

• It is converted to sound

• It is mostly reflected

• It disappears

• It is fully absorbed

Why do darker-colored objects absorb more heat?

• They have more surface area

• They are heavier

• They are closer to the Sun

• They reflect less light

What is the main reason land absorbs more energy than water?

• Land is wetter

• Land is higher

• Land is darker

• Land is denser

What is the opposite of absorption in terms of energy?

• Convection

• Conduction

• Radiation

• Reflection

What should you do to cool off after being on hot sand?

• Sit under a tree

• Stand in the shade

• Lie on the sand

• Wade in the water