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
15
What is the chemical symbols for Potassium?
K
15
What state of matter is represented by this diagram?
Liquid
15
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
20
If you leave ice in a _________ place it melts and becomes liquid water.
warm
15
The temperature at which a solid melts is called the __________________
melting point
15
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
15
The temperature at which a substance melts and boils are two of its ______________
properties
15
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
15
Which state of matter has the strongest forces between its particles? __________
solid
15
Name the state of matter that fits this description. Particles do not touch one another. ____________
gas
15
Name the state of matter that fits this description. Particles are close together in a regular pattern. __________
solid
15
Name the state of matter that fits this description. Particles are closely packed but not in a regular pattern. __________
liquid
15
Which of these terms matches the two facts? This falls from clouds Rain, snow and hail are forms of this. ______________
precipitation
15
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
15
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. ______________