Groundwater is the water we drink from wells. Is it freshwater or saltwater?

Animals in the desert are often "nocturnal". This means they sleep at night. True or False?

What temperature is colder: 32 degrees Fahrenheit or 32 degrees Celsius?

Does sweating help your body heat up or cool down?

Which planet is closer to the sun: Earth or Mars?

What flows out when a volcano erupts?

What furry animal cuts down trees with its teeth and builds dams in streams?

All objects have mass and take up space?

Our teeth are made of bone?

Does the moon orbit Earth in about one week, two weeks, or 29 days?

What part of the plant holds it tightly in the soil?

What do you call the "feelers" on the head of an insect?

Atoms are particles of matter. Are they very large or very small?

What do you call the liquid that flows through your veins?

What's the name of our galaxy?

If a squirrel buries an acorn in the woods, what kind of tree will grow?

When we say a cricket is "singing," what is it really doing?

What force makes climbing down a rope easier than climbing up?

Which of our senses is located in our hands?

What do we call deep holes in the moon?

What do you call a tree that carries its seeds in cones?

Why is it hard to see a polar bear in the snow?

What makes your hands warm when you rub them together?

The ribcage protects the lungs. What other vital organ does it protect?

Why are Mercury and Venus hotter than Earth?