Elements and Compounds
Metals, Nonmetal, Metalloids
Density
Physical and Chemical Changes
Earth's Spheres
100
How can you represent an element?
A. A gumball machine with different colored gums.
B. Different colored legos.
C. A fish tank with the same size and same colored fish.
C. A fish tank with the same size and same colored fish.
100
What are the properties of metals?
Solid
Good Conductor
Malleable
Shinny
100
What is the Density formula.
Mass/Volume
100
Which one of the following is an example of a Physical change?
A. Mixing baking soda with vinegar.
B. A glass cup falling from a counter top and braking.
C. Lighting a piece of paper on fire.
B. A glass cup falling from a counter top and braking.
100
What are Earth's Spheres?
Lithosphere
Atmosphere
Hydrosphere
Biosphere
200
True or False
Is this Chlorine is an element not a compound.
True
200
What are the properties for Nonmetals?
Dull
Gas
Brittle
Poor Conductor
Not Malleable
200
What is the formula for Volume and Mass
V=Mass/Density
Mass=Density X Volume
200
You add baking soda to vinegar, what happens to the temperature?
It will decrease.
200
The most abundant elements in the Lithosphere are?
Oxygen and Silicon
300
What is the difference between Co and CO2?
One is an element and the other one is a compound
300
What are the properties of Metalloids?
Shinny
Dull
Semi-Conductor
Brittle
Malleable
300
Calculate the Density.
m = 5 g
V = 5 mL
1 g/mL
300
When you slice an apple in half, is that a physical or chemical change?
Physical
300
What are the most abundant elements in the Hydrosphere?
Hydrogen and Oxygen
400
Which of the following lists contains only elements?
A.Oxygen, Carbon Dioxide, Glucose
B.Carbon, Hydrogen, Silicon
C. Water, Gasoline, Helium
B.Carbon, Hydrogen, Silicon
400
Classify Potassium
Metal
400
Below are the masses and volumes of three objects which one has the greatest Density?
Object Mass Volume
1 10 3
2 6 2
3 7 2
Object 3
400
When you add Kool-Aid to water is that a physical or a chemical change?
Physical Change
400
What are the most abundant elements in the Atmosphere?
Nitrogen, Oxygen, and Argon
500
Element
Compound
Element
Mixture
500
Classify these elements into Metals, Nonmetals, or Metalloid.
Silver, Boron, Bromine
Silver-Metal
Boron-Metalloid
Bromine-Nonmetal
500
Density=Mass/Volume
Mass=25g
Initial Volume=35mL
Liquid + Mineral=40mL
40-35=5mL
D=25g/5mL
D=5g/mL
500
Three substances where mixed a clear substance. Below are the observations recorded, from these observations which one had a chemical change?
Substance Appearance Before Mixing After Liquid
1 Brown liquid Pale Brown
2 Pink Powder Pink Liquid
3 Transparent liquid Orange Liquid
Substance 3
500
What are the most abundant elements in the Biosphere?
Oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus