Question 1

Why is water important for our bodies?

Accepted Answer

Water helps keep our bodies running smoothly. It helps us stay cool, digest food, and keeps our organs working well.

Question 2

Why does ice float on water?

Accepted Answer

Ice floats because it is less dense than water. When water freezes into ice, it expands and becomes lighter than the water around it.

Question 3

What is the water cycle?

Accepted Answer

The water cycle is how water moves all around the Earth. It goes from lakes and oceans into the sky as vapor, forms clouds, then falls back as rain or snow.

Question 4

Can water be in different forms?

Accepted Answer

Yes, water can be a liquid, like the water we drink, a solid, like ice, or a gas, like steam. It changes form when it gets hotter or colder.

Question 5

Why does water evaporate?

Accepted Answer

Water evaporates when it's heated up. The heat gives water molecules so much energy that they turn into gas and float into the air.

Question 6

How much of Earth's surface is covered by water?

Accepted Answer

About 70% of Earth's surface is covered by water. Most of it is in the oceans.

Question 7

Why is water called a 'universal solvent'?

Accepted Answer

Water is called a universal solvent because it can dissolve many substances. This helps in mixing things like sugar in your drink or salt in the sea.

Question 8

Why do fish need water to live?

Accepted Answer

Fish need water to live because they breathe through their gills, which take oxygen from water. Without water, fish can't get oxygen and survive.

Question 9

Why is clean water important?

Accepted Answer

Clean water is important because it keeps us healthy. Dirty water can have germs that make people sick.

Question 10

What makes water wet?

Accepted Answer

Water feels wet because it's made up of tiny droplets that stick to surfaces and to each other. This is what makes things feel slippery or wet.

Question 11

How does water help plants grow?

Accepted Answer

Water helps plants grow by carrying nutrients from the soil to the plant. It also helps keep the plant upright and cool.

Question 12

Why is water clear?

Accepted Answer

Water is clear because it doesn't absorb a lot of light. This means light can pass through it, making it see-through.

Question 13

How do animals use water?

Accepted Answer

Animals drink water to stay hydrated. They also use it to cool down, like when an elephant sprays water on itself.

Question 14

What happens when water boils?

Accepted Answer

When water boils, it turns into steam. The heat makes water molecules move fast and push apart, turning the liquid into a gas.

Question 15

Why do we need to save water?

Accepted Answer

We need to save water because there's only so much fresh water available. Saving water helps make sure everyone has enough to drink and use.

Question 16

How can you see water in the air?

Accepted Answer

You can see water in the air as clouds or fog. These form when water vapor cools and turns back into tiny water droplets.

Question 17

What is frozen water called?

Accepted Answer

Frozen water is called ice. It forms when water gets really cold and changes from a liquid to a solid.

Question 18

Why do rainbows appear after rain?

Accepted Answer

Rainbows appear when sunlight shines through raindrops. The light bends and splits into many colors, making a rainbow.

Question 19

What does it mean for water to be pure?

Accepted Answer

Pure water means it's only made of water molecules, with nothing else in it. No dirt, salt, or chemicals.

Question 20

Why is the ocean salty?

Accepted Answer

The ocean is salty because rain washes minerals like salt from rocks into rivers and then the ocean. Over time, the salt builds up in the sea.

The Science of Water: Properties and Importance - 20 FAQs Explained Simply