Which of these terms matches the two facts? This falls from clouds Rain, snow and hail are forms of this. ______________
precipitation
Which of these terms matches the two facts? When this happens, liquid water changes to water vapour. Water from rivers and the ocean is taken up into the atmosphere. ______________
evaporation
Give the symbol for magnesium : ____________ oxygen : ____________
Mg and O
Give the symbol for hydrogen : ____________ calcium : ____________ and boron : ____________
H , Ca, and B
Marcus place a substance in a beaker. He saw that the substance changed shape and took the shape of a beaker. What was the substance?
Liquid
Which state of matter has the strongest forces between its particles? __________
solid
If you heat water until its temperature reaches 100 degree C, it will boil. Now, all of the water rapidly change to ____________. 100 degree C is the boiling point of water.
water vapour
What is the difference between a mixture and a compound?
Mixture is not chemically bonded and easily to separate, but the compound is chemically bonded and hard to separate
The temperature at which a substance melts and boils are two of its ______________
properties
Name the state of matter that fits this description. Particles are close together in a regular pattern. __________
solid
Name the state of matter that fits this description. Particles do not touch one another. ____________
gas
Which of these terms matches the two facts? This is what happens when water vapour cools down. This is a change from water vapour to a liquid. ______________
condensation
Which of these statements about the Periodic table is correct? the columns are called periods / the columns are called groups
the columns are called groups
Name the state of matter that fits this description. Particles are closely packed but not in a regular pattern. __________
liquid
The temperature at which a solid melts is called the __________________
melting point
If you leave ice in a _________ place it melts and becomes liquid water.
warm
What is the chemical symbols for Potassium?
K
Name the element with the given symbol. Cl : __________ and Si : _____________
Chlorine and Silicon
What state of matter is represented by this diagram?
Liquid
Name the element with the given symbol. C : __________ , Na : _____________ and K : _____________
Carbon , Sodium and Potassium
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