A large body in space that orbits a star and does not produce its own light.

A climate zone characterized by very little precipitation and extremely cold temperatures.

The fine dustlike powder that contains the male reproductive cells of seed-bearing plants.

To transfer the pollen from the male reproductive structure to the female reproductive structure to fertilize flowering plants.

Inference––An explanation based on evidence that is not directly observed.

A trait or characteristic that is passed from parent to offspring.

A material used to reduce or prevent the transfer of electricity, heat, or sound.

An animal that lacks a backbone.

An organized scientific study of the natural world that may include making systematic observations, asking questions, gathering information, analyzing data, summarizing results, drawing conclusions, and/or communicating results.

An early stage in the life cycle of an organism that will undergo complete metamorphosis.