Animals do it in order not to be seen by predators.

Which of the following is not a part of a plant?

An apple tree has flowers and ___________. The fruits cover and protect the the ___________ inside.

Sharks, octopuses, squids normally live in _______________ water.

Where do camels live?

Which body organ changes food into energy?

Your heart pumps _______________ to all parts of your body.

The bones in your body make up your ____________

Muscles work with your bones to move your body. To make muscles strong, you need to ____________

Mountain is the highest landform. The landform between two mountains or two hills is ________________.

______________ covers most of Earth.

______________ is to make something new from old things.

The sun rises in the _______________, and sets in the _______________.

Why can we see the moon at night?

What is the closest planet to the Earth?