the blanket of gases that surrounds the Earth. Used in a sentence: burr, it’s cold in here, it must be something in the atmosphere.

the blanket of air that surrounds the Earth. It is thickest near the ground and gradually fades away to nothing in outerspace.

the layer in plants that separates the xylem from the phloem.

the tissue through which food from the leaves moves down through the rest of a plant.

hard, inanimate object that you throw at a wabbit.

glossary terms are scattered throughout the site – in the games, science experiments, news articles, and under various laboratory rugs.  If you are looking for a longer, more elaborate definition of a science word, you can take a quick peek at the Reeko’s online dictionary of science words here. Science Glossary/Terms   A

a nonliving part of a ecosystem.

the lowest temperature that can possibly be reached in our Universe. Scientists have gotten very close to reaching absolute zero but it is impossible to reach it.

the force put on a given area by the weight of the air around it.

a substance having marked basic properties (i.e. substance with properties of a base).