What is chlorophyll?
This green color in leaves helps catch sunlight.
This is the smallest unit of life. All organisms are made of ...
Cell
What is acid?
A substance that turns litmus red. It has a pH of less than 7.
What is an ammeter?
A piece of equipment that measures how much electricity is flowing around a circuit.
What is condense?
When a substance changes from its gas state into its liquid state.
Plants take in this gas to help make food.
carbon dioxide
What is an antibody?
A substance produced by white blood cells that helps to fight microorganisms that might cause diseases.
What is alkali?
A substance that turns litmus blue. It has a pH of more than 7.
The unit for measuring current.
Ampere
What is a consumer?
An animal that consumes (eats) other organisms.
Plants use sunlight to make their own food. This process is called
Photosynthesis
What is an atom?
Atoms are small particles from which all substances are made.
What is boiling point?
The temperature at which a liquid boils.
What is current?
The flow of electricity around a circuit.
Substances that attack metals, stonework and skin are said to be...
Corrosive
What is a producer?
Makes its own food (e.g., plants)
An organ system that carries oxygen and food around the body.
Circulatory system
A change in which one or more new substances are formed.
chemical reaction
A unit for measuring the loudness of a sound.
decibel (dB)
Plants that lose their leaves in winter.
deciduous (des‐sid‐yoo‐us)
What is adaptation?
The features that something has to enable it do a certain job or survive in a particular place.
What is biomechanics?
The study of how muscles and bones work together.
A substance that can be split up into simpler substances, since it contains the atoms of two or more elements joined together.
Compound
An organ system that breaks down food.
digestive system
What is desalination?
To produce fresh drinking water by separating the water from the salts in salty water.