< Back
Glossary results for "W"
waning moon
a moon that is getting smaller
warm
a temperature that is above the freezing point of water
warm-blooded
animals that can maintain a relatively constant internal body temperature, regardless of the outside temperature
watch glass
a small, round piece of glass used in laboratories to cover microscope slides and other small objects
water
a clear, colourless liquid that is essential for life
water butt
a container that collects rainwater
water cycle
the continuous movement of water around the Earth
waterproof
does not let water through
water treatment
the process of making water safe to drink
water vapour
water in its gaseous state
wavelength
the distance between two consecutive crests of a wave
waves
a disturbance that travels through a medium, like water, air, or even space
waxing moon
a moon that is getting bigger
weather
the condition of the atmosphere at a particular place and time
weathering
the breaking down of rocks and minerals on Earth's surface
weed
a plant that grows where people don't want it to grow
weight
the force of gravity pulling on an object
white blood cells
the body's main defence against infection
wild
not tame or domesticated
wind
the movement of air across the Earth's surface
window frame
the part of a window that holds the glass in place
window pane
a piece of glass that is used in a window
wind turbine
a machine that uses the wind to generate electricity
winter
one of the four seasons of the year
wire
a long, thin piece of metal that can be bent or shaped
woman
an adult female human
womb
the organ in a woman's body where a baby grows
wood
a natural material that comes from trees
wool
a natural fiber that comes from sheep