Show:
Atoms/Elements/States
chemical or Physical
Acids and Bases
Random
Mixtures
100
Does heat make Atoms move fast or slow?
fast
100
Which of the following is a physical change? Peanut butter brownies salad cake
Salad
100
Are acids bitter or sour?
sour
100
Which of the following won't make a crystal? Salt borax baking soda sugar
baking soda
100
What is the difference between a solute and a solvent?
A solute is what is being dissolved, while a solvent is the substance doing the dissolving.
200
Can atoms be joined together to make different kinds of matter?
Yes
200
What is the difference between a physical and chemical change?
A chemical change is irreversible (burned wood) A physical change can is reversible (ice-water-ice)
200
What is the PH scale?
Is used to measure the power of an acid or a base
200
What is an example of surface tension? salt water bubbles milk cookies
bubbles
200
How are mixtures and solutions related?
A mixture is a blend of 2 substances that have not combined chemically. A solution is a homogeneous mixture.
300
What are the three states of matter?
Solid, liquid, gas
300
When salt is mixed with water is that reversible or irreversible?
reversible
300
Is baking soda an acid or a base?
Base
300
If I make salt crystals, would that be reversible or irreversible?
reversible
300
Tell me three ways mixtures can be separated?
1. Sieving 2. Magnetism 3. Evaporation
400
What is Oobleck?
A state that is neither a liquid or a solid
400
How do you know when a chemical change has occurred?
A new substance is formed.
400
Tell me 3 bases, and 3 acids?
Base: bleach, ammonia, baking soda Acid: Vinegar, tea, lemon juice
400
True/false Crystals are made in blobby patterns?
true
400
What is the difference between a homogeneous mixture and a heterogeneous mixture?
A Homogeneous mixture is when the substances are mixed uniformly throughout.
500
How many types of atoms make up a pure element?
One
500
When we mixed baking soda with vinegar what happened?
It caused a chemical reaction creating carbon dioxide.
500
True or false Bases are never found in homes?
False
500
Which is not a crystal? salt snowflake amethyst water
water
500
Do solid molecules stay close together or far apart? How about gas molecules?
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