to be a
1 - $100 8- $16,000
2 - $200 9- $32,000
3 - $500 10 - $64,000
4 - $1,000 11 - $125,000
5 - $2,000 12 - $250,000
6 - $4,000 13 - $500,000
7 - $8,000 14 - $1,000,000
• “Phone a friend”
• Ask the audience
What is the smallest quantity of an element?
A - Compound
B - Atom
C - Molecule
D - Solution
Anything that has mass and takes up space
A – A substance
B - energy
C - matter
D - volume
Which of the following is a chemical change?
A– Sodium and Chlorine atoms combine to make
B – Sugar and water are combined to make sugar
C – salt and pepper are mixed
D – wood is chopped into fine sawdus
Lemon juice is used as "invisible ink". It dries clear on paper but turns
brown when a burning candle is held under the paper. Once it is
heated, it is never invisible again. What type of change is occurring
when the paper is heated?
A – temperature change
B – elemental change
C – physical change
D – chemical change
The formula above is a substance commonly called chalk.
The following is true about chalk.
A – it is comprise of 3 mixtures
B – it is comprised of 3 compounds
C – it is comprised of 3 molecules
D – it is comprised of 3 elements
Which of the following chemical formulas
shows an element, not a compound?
A - Sodium Chloride (NaCl)
B - Carbon Dioxide (CO2)
C - Ammonia (NH3)
D. Oxygen (O)
D --Oxygen (O22)
Which of the following is a physical
property of copper?
-Ductile, can be drawn into wire
A - Ductile,can be drawn into aawire
B - Liquid at room temperature
C - Readily reacts with water to form an acid
D - Readily reacts with oxygen
During a science class experiment, a teacher places a small
amount of sugar in a spoon and heats it over a candle.
Which of the following would be the BEST evidence that a
change in the chemical properties of the sugar has taken
A - The sugar get hotter
B - The sugar gets black.
C - The sugar gets larger.
D - The sugar turns into a colorless liquid.
Limestone is a common form of calcium carbonate. When
limestone is subjected to high heat, it becomes calcium
oxide and releases carbon dioxide gas. This change in
limestone at a given temperature is an example of:
A - A physical change like the melting of ice.
B - A chemical change like the rusting of iron.
C - An igneous change like the melting of rock in
D - A reversible change such as hardening melted
A teacher had two clear liquids, Liquid A and Liquid B.
The teacher filled one beaker with Liquid A, and then
added Liquid B drop by drop until solid crystals suddenly
formed on the bottom of the beaker. Which of these is the
MOST LIKELY explanation for what happened?
A - Liquid A changed phases from a liquid to a so
B - Liquid B evaporated, leaving behind solids th
C - Liquid A and Liquid B combined to form a ne
D - Liquid A and Liquid B did not mix because th
Which element that is essential for human
life is found in large amounts in both Earth's
atmosphere and oceans?
A - Helium
B - Silica
C - Oxygen
D - Calcium
Evelyn read a book about a scientist who
turned lead into gold. Her friend Justin told
her that it is not possible to turn lead into
A - it is not possible to get the lead hot enough us
B - the ingredient needed to turn lead into gold is
C - the lead used by the scientist was mixed with
D - elements can not be changed into another elem
Water can be represented by the chemical
formula H2O. What does the letter O
represent in this formula?
A - The O represents water in only its liquid state.
B - The O represents the number of elements in th
C - The O represents a single atom of oxygen in th
D - The O represents a compound that is only fou
Which of the following diagrams illustrates