You bite something when you hold it in your mouth, between your teeth. You usually bite to break off a piece of something, like biting off a mouthful of an apple.
The cat in the picture is biting the woman's nose.
Insects like mosquitos that don't have mouths like ours can still bite you with their tongues.
Video: view
Video: view
Something bounces when it hits a surface and then springs back in another direction.
The ball in the picture is bouncing along the pavement.
Bis forBow (motion)
Bowing is a way of greeting or acknowledging someone, or a mark of respect. You bow by lowering the top half of your body. In some countries, you can bow just by lowering your head.
Video: view
Chewing is when you put food in your mouth and keep pressing or grinding it between your teeth until it is soft and mushy enough to swallow.
People and animals will chew a lot of things that aren't food though. Some people chew their fingernails, or the ends of pens and pencils. Dogs will chew your shoes and furniture so it is good to get them a chew toy like in the picture.
Video: view
Video: view
Climbing is a way of getting up something that is too high or too steep to just walk up. Things that people usually climb are cliffs, mountains or trees.
Adults usually climb cliffs, mountains or rock faces, and children usually climb trees or playground equipment. But you can climb lots of other things too.