Science of Whys

Why is the sky blue?

• The sky appears blue due to the scattering of sunlight by the gases and particles in the Earth's atmosphere.

• The sky is blue because of the Earth's magnetic field

• The sky is blue because of the reflection of the ocean

• The sky is blue because of the color of the atmosphere

Why do we yawn?

• To regulate oxygen and carbon dioxide levels

• To show boredom

• To keep the brain awake

• To stretch the muscles

Why do we have seasons?

• The rotation speed of the Earth

• The Earth's tilt on its axis

• The distance of the Earth from the sun

• The amount of rain in different seasons

Why do we need to drink water?

• To turn into a fish

• To make our skin glow in the dark

• To keep our body functioning properly

• To see if we can float like a balloon

Why do leaves change color in the fall?

• Change in the Earth's magnetic field

• Leaves absorb more sunlight

• Increase in chlorophyll production

• Decrease in chlorophyll production

Why is the ocean salty?

• Chemical reaction with marine animals

• Pollution from industrial waste

• Evaporation of seawater

• Dissolved salts from rocks and minerals

Why do we have day and night?

• The sun moves around the Earth.

• It's just the way it is, no scientific reason.

• It's a mystery that can never be explained.

• The Earth rotates on its axis.

Why do we have tides?

• Gravitational pull of the moon and the sun

• Movement of the Earth's core

• Global warming

• Chemical reactions in the ocean

Why do we have different time zones?

• To give people an excuse for being late

• To account for the Earth's rotation and the need for consistent timekeeping across different regions.

• To confuse travelers

• Because the government likes to make things complicated

What causes the formation of thunderstorms?

• Collision of hot and cold air masses

• Underground volcanic activity

• Global warming

• Chemical reactions in the atmosphere