12 Questions
What characteristic of liquids distinguishes them from solids and gases?
They can flow.
Which state of matter is almost impossible to compress?
Solid
What is the process of turning a liquid into a gas called?
Evaporation
At what temperature does water boil according to the text?
100°C
Which type of change involves changes between states and is reversible according to the text?
Physical change
What happens when a gas turns into a liquid?
Condensation
What happens to the particles in a substance when they get closer together due to a temperature change?
No changes in substance
In dissolving sugar in water, what is the role of water?
Water is the solvent
Which type of changes are generally reversible, although some situations can make them irreversible?
Physical changes
What indicates the creation of a new substance according to the text?
Formation of bubbles
Why are chemical changes always considered irreversible?
They create new substances
What determines the speed at which sugar dissolves in water?
Temperature of the solution
Learn about materials and scientific enquiry in Science Year 6A, covering topics such as observing changes over time, looking for patterns, identifying and classifying, and planning and carrying out a fair test. Understand the properties of solids, liquids, and gases.
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