Picat: General Science

Which of these reduces friction?

ball bearings

When a lobster grows a claw to replace one that was lost, the process is called?

regeneration

Any astronomical body that revolves around a larger body is called?

satellite

In chemistry, to be classified as an organic substance, a substance must contain?

carbon

Which element does not NOT contain any neutrons?

Hydrogen

The chemical formula of a compound describes the elements the compound contains and the

The ratio of elements in the compound.

How many atoms are in a single molecule of water( H2O)?

3

Which of the following is a renewable resource?

peanut oil

When scientists measure a liquids resistance to flow, they are measuring the liquids

Viscosity

Regeneration in man is limited to

healing of wounds

The filament in an electric light bulb is

tungsten

A human skin cell divides by

mitosis

A perpetual- motion machine can never be built because it is not possible to eliminate

inertia

Argon and neon are

noble gases

By definition, an aquifer is

River bottom made up of gravel and sedimentary rock