Glossary - L

 

Labour		Time when the baby is about to be born.
Larva		Young insect which is not yet an adult.
Larvae	larv-ee	Plural of 'larva'
Law of conservation of energy		The idea that energy can never be created or destroyed, only changed from one form into another
Leaf		Plant organ used to make food using photosynthesis.
Leap year		A year with 366 in it. We have a leap year every 4 years.
Life processes		Seven things that all living things must do: movement, reproduction, sensitivity, growth, repiration, excretion and nutrition.
Light energy		The kind of energy given out by light bulbs, candles etc.
Light year		The distance that light travels in one year.
Liquid	lick-wid	Something made of particles fairly close together, but with bonds that are less strong than in solids. The particles can move past each other in a liquid.
Litmus		A simple kind of indicator. It is red in acids and blue in alkalis.
Liver		Organ used to make and destroy substances in our bodies.
Lubricant	loo-brick-ant	A substance (normally a liquid) used to reduce friction.
Lubrication	loo-brick-ay-shun	Adding a lubricant to something.
Lunar month		28 days -- the time it takes the Moon to orbit the Earth once
Lungs		Organs used to take oxygen out of the air and put waste carbon dioxide into the air.