Glossary results for "W"

a moon that is getting smaller

a temperature that is above the freezing point of water

animals that can maintain a relatively constant internal body temperature, regardless of the outside temperature

a small, round piece of glass used in laboratories to cover microscope slides and other small objects

a clear, colourless liquid that is essential for life

a container that collects rainwater

the continuous movement of water around the Earth

does not let water through

the process of making water safe to drink

water in its gaseous state

the distance between two consecutive crests of a wave

a disturbance that travels through a medium, like water, air, or even space

a moon that is getting bigger

the condition of the atmosphere at a particular place and time

the breaking down of rocks and minerals on Earth's surface

a plant that grows where people don't want it to grow

the force of gravity pulling on an object

the body's main defence against infection

not tame or domesticated

the movement of air across the Earth's surface

the part of a window that holds the glass in place

a piece of glass that is used in a window

a machine that uses the wind to generate electricity

one of the four seasons of the year

a long, thin piece of metal that can be bent or shaped

an adult female human

the organ in a woman's body where a baby grows

a natural material that comes from trees

a natural fiber that comes from sheep