States of Matter
Properties of Matter
Mixtures & Solutions
Physical & Chemical Changes
Mixed Grab Bag
100
What is matter?
Anything that has mass and takes up space.
100
What are "properties of matter" referring to?
the characteristics that can be observed through sight, seeing, hearing, smelling, and touch
100
What is a mixture?
Two or more substances mixed together that can be easily separated and do not make something new
100
What is a reversible change?
a change that can be returned to its original state
100
What are some properties of a piece of paper?
Answers may vary but may include flexible, white, rectangle, light, smooth, soft, etc
200
What are the three states of matter?
solid, liquid, and gas
200
What does it mean if an object is buoyant?
it can float
200
What is a solution?
a mixture of two or more substances that cannot be easily separated and makes a new substance
it dissolves evenly
200
What is an irreversible change?
a change that cannot be returned to its original state
200
Is a vegetable medley a mixture or a solution and how do you know?
mixture - It can be easily separated and did not change the vegetables into something else
300
What is a solid? Give an example.
matter that holds its own shape and always takes up the same amount of space
300
What does it mean if an object is flexible?
it can bend without breaking
300
What is a solvent? (Think about water for Kool-Aid and for hot chocolate)
something that is able to dissolve other substances
water is the "universal solvent"
300
What is a physical change?
A change in which NO new substances are created.
The matter may take on a different form (size, shape, state of matter, color)
Most are reversible.
300
Is a baking soda volcano eruption a chemical or physical change and how do you know?
chemical - It creates something new (a gas). It can also not be reversed
400
What is a liquid? Give an example.
Matter that flows freely and takes the shape of the container but may not fill the space
400
What are some properties of an popsicle stick?
smooth, round, flat, hard, thin, brown/tan, inflexible, light, etc
400
Name 3 examples of mixtures.
(answers may vary but may include fruit salad, Chex Mix, Lucky Charms, trail mix, etc)
400
What is a chemical reaction?
Any change that causes a new substance to be formed and it is no longer the original substance
Most chemical changes are irreversible
400
Is cooking an egg a reversible or irreversible change and how do you know?
Irreversible because you can not turn it back into a raw (uncooked egg). The molecules have changed and it is a chemical change.
500
What is a gas? Give an example.
matter that can't be seen but is all around
takes the shape of and fills the container
500
What are some properties of Coca-Cola?
sticky, liquid, bubbly, brown, sweet, cold, etc
500
Name 3 examples of solutions.
(answers may vary but may include shampoo, soda, hot chocolate, Kool-Aid drink, lemonade, etc)
500
Give an example of a chemical reaction.
Answers may vary but may include burning something, baking something, rust, etc)
500
Is salt water a solution or mixture and how do you know?
It is a solution because the salt is dissolved in the water