Matter
Which state of matter does not take the shape of its container?
solid
Which vocabulary word means "a quality or characteristic of something"?
Property
Is mixing baking soda and vinegar an example of a physical change or a chemical change?
Chemical
Which state of matter has particles that are very tightly packed together and can hardly move at all?
Solid
What color did the Statue of Liberty used to be?
gold, or copper
All states of matter can exert a ______________.
We proved this using a pinwheel.
Force
When you make banana bread, give one example of a sign that a chemical change has occurred.
-New properties. -It's not reversible.
-New smell. -Something new is made.
-New texture
-Change in color
-Change in taste
Which state of matter has particles that move around the most freely?
Gas
When two mystery white substances are heated on a stove, one of them turns a caramel color, bubbles, and hardens. What does this tell us?
It must be sugar.
Matter has mass. What other term do we often use instead of mass?
Weight
When you burn paper, we know a chemical change happens, because there are signs of a chemical reaction. What new substance is formed when you burn paper?
Ash, smoke
We know that an inflated balloon weighs more than a deflated balloon. What does this tell us about gases?
Gases do have weight, or mass.
Cutting a piece of paper into small pieces is an example of a _____________ change.
Physical
True or False?
Sometimes during a chemical change, matter can disappear.
False.
It doesn't disappear. It just changes form, or changes into something else.
When making a lava lamp, the antacid tablets were no longer visible in the bottle. How do we know that they were, in fact, still in the bottle, even though we couldn't see them?
The mass, or weight, of the bottle before and after remained the same.
Water can exist in all 3 states, solid, liquid, and gas. How does it change from a gas back into a liquid?
It is cooled down.
What vocabulary word means "when a solid "disappears" in a liquid"?
dissolve