Vocabulary
Mixtures and Solution
Changes in Matter
Changes in Matter-2
100
A change from one form to another form without turning into a new substance.
What is a physical change?
100
A change in temperature can speed up or slow down the dissolving process of what?
What is a solution?
100
Which of the following is an example of a change that results in a new substance?
a. egg frying in a pan
b. water freezing into ice
c. paper being shredded
d. lump of clay being broken in two
What is "a. egg frying in a pan?"
100
Ice melting then water evaporating.
What is a physical change then a chemical change?
200
A change that produces a new substance, or different kind of matter.
What is a chemical change?
200
You can easily separate the components.
What is a Mixture?
200
Which of the following would NOT provide evidence that supports a chemical change?
a. change in odor
b. change in color
c. presence of bubbles
d. change in size or shape
What is change in size or shape?
200
Sophia lights a candle, the wax begins to melt down the side of the candle. Which type of change does the melting wax describe?
What is physical change?
300
Different materials placed together, but each material keeps it's own properties.
What is "Mixture"?
300
The substance that is being dissolve.
What is the solute?
300
Eva has a tower of 6 plastic cubes that are exactly alike. She places the tower on a pan balance and notes that the mass is 42 grams. What can Eva conclude is the mass of each cube?
What is 7 grams?
300
Alex is eating his snack during class. He chews his food and then swallows it. Describe what is happening.
What is "Alex's food is going through a physical change (chewing) and chemical change (digestion).
400
A brown color material that is made when oxygen and iron combine.
What is rust?
400
The substance in which the solute is being dissolved.
What is the solvent?
400
Lola's little sister builds a tower using blocks. If the total mass of the blocks in the tower is 150 grams, what can Lola predict will be the mass of the blocks if she takes them apart and places them on the digital scale?
What is 150 grams?
400
A scout snaps a twig in half and then burns the pieces in a campfire. How would you describe the change?
What is "a physical change followed by a chemical change?"
500
A mixture in which substances are spread out evenly and do not settle at the bottom of the container.
What is a Solution?
500
What is C?
500
Which of the following items does NOT support a chemical change?
leaves decaying, icicles melting, wood burning, rust on a bicycle
What is "icicles melting?"
500
How do you know when a piece of fruit is starting to decay?
What is "it starts to change colors?"