Physical Changes
Chemical Changes
Mixtures
Solutions
Vocabulary
100
What are three of the seven physical properties?
Possible Answers: color, shape, texture, luster, size, mass or density
100
What is the definition of a chemical change?
A change in matter that produces new kinds of matter with different properties.
100
What is the definition of a mixture?
Matter made up of two or more substances that are combined physically, but they keep their individual properties.
100
What is the definition of a solution?
A mixture in which the particles of the parts are mixed together thoroughly and evenly.
100
What is mass?
The amount of matter in an object.
200
What is the definition of a physical change?
A change in the size, shape or state of matter that does not change it into a new kind of matter.
200
What are three indicators of a chemical change?
Possible answers: changes in color, state(bubbles), temperature, odor, and energy.
200
True or False, this is an example of a mixture: Bubbles
True, they are a mixture of water and soap.
200
What does dissolve mean?
To mix completely by separating into particles that cannot be seen.
200
What is density?
The amount of matter in a given space or a given volume.
300
True or False, this is an example of a physical change: ice melting
True
300
True or False, this is an indicator of a chemical change: ashes of a burnt log
True
300
True or False, this is an example of a mixture: Sea Water
True, sea water is a mixture of water and salt.
300
True or Falser, this is an example of a solution: Sand
False, sand does not dissolve in water.
300
What is volume?
The amount of space that matter takes up.
400
True or False, this is an example of a physical change: a bolt that has rusted
False
400
True or False, this is an indicator of a chemical change: cooking an egg
True
400
True or False, this is an example of a mixture: Air
True, air is a mixture of gasses.
400
True or Falser, this is an example of a solution: Sugar Water
True, sugar is very soluble in water.
400
What is matter?
Anything that has mass and takes up space.
500
True or False, this is an example of a physical change: Making an origami paper crane
True
500
True or False, this is an indicator of a chemical change: cutting a grapefruit
False
500
True or False, this is an example of a mixture: Carbon Dioxide
True, it is a mixture carbon and oxygen.
500
True or Falser, this is an example of a solution: Salt Water
True, some salt will dissolve in water (some will settle to the bottom).
500
What is energy?
The ability to cause change.