Kris antu.
sprinkler
gravity keeps us in a circle
aluminum foil
It is a saying meaning that you should eat healthy things like fruit so that you stay healthy - hence "keeps the doctor away"
Science keeps us healthy as it is used to make many things like vitamins which keep us healthy.
what keeps our bones from scratching and bumping agaist each other when we move
Possibly the aquarium is too small for him/her and it is trying too escape the confines of the tank.
cartilage
cartlilage !
Let them bang !
He's either really clumsy, needs glasses, or he might just like you :)
remember its a computer game, it wont hurt them so just let them be
The dirty buisness. If you know what I mean ;D
Bats use echolocation to determine where they are going.
gravity keeps things in orbit
Materials such as wool, down feathers, and thermal fabrics like fleece are good at trapping heat and keeping things warm. Insulating materials like foam and polystyrene also help to maintain warmth by preventing heat loss through conduction. Additionally, materials like stainless steel and glass can be used for containers that can retain heat for longer periods of time.
Cartilage is a dense, flexible tissue that prevents bones from rubbing on each other.