20 questions
What are the three states of matter?
Solid
Wet
Gas
Frozen
Liquid
What do you call the red particles in this mixture?
Solvent
Solute
Solution
What do you call the blue substance in this mixture?
Solvent
Solute
Solution
Which two words describe a mixture where you CAN'T see the different parts?
Solution
Homogenous Mixture
Heterogenous Mixture
Do solids have high or low kinetic (movement) energy?
Low (the particles don't move very much)
High (the particles move around lots)
What is a heterogenous mixture?
A combination of two or more substances where you can see the different parts.
A combination of two or more susbtances where you cannot see the different parts.
A single substance that you stir.
Which of these are homogenous mixtures (pick 2)?
Chemistry is defined as the study of
living organisms
motion and forces
physical phenomena
matter and its changes
matter with no definite volume or shape
freezing
gas
heat
melting
What substance was used to create the goo "oobleck"?
Baking Soda
Flour
Corn Starch
Salt
The chemical formula for water is :
O2H
H2O
H3O
OH
What is the chemical formula for Carbon Dioxide?
CH2O
C2O
2CO
CO2
What does PH measure?
the amount of photons in a substance
how acidic or basic something is
how much electricity it has
how soluble it is
What color will vinegar change to after the red cabbge indicator?
blue
yellow
purple
pink
what pH is H2O?
1
3
7
11
What protein traps water molecules to form a semi-solid?
water
carbon
gelatin
cabbage
What is it called when you pour off the liquid?
evaporation
precipitation
decanting
filtering
Something that you must keep the same (or change one) in an experiment.
solute
variable
prediction
result
Which is NOT evidence of chemical change?
color change
bubbles
stirring
energy released
Residue