Jeopardy

$100

Elements Compounds and Mixtures

Physical Or Chemical

Change

PhysicalOr Chemical

Property

Heterogenous Or

Homogeneous

Water Properties/ Biogeochemical

Cycles

$200

$300

$400

$500 $500

$400

$300

$200

$100

$500

$400

$300

$200

$100

$500

$400

$300

$200

$100

$500

$400

$300

$200

$100

Final Jeopardy

1 - $100

A pure substance that cannot be broken down into simpler substances AND is made of only 1 kind of atom is called what?

Element

1 - $200

A mixture that appears to contain only one substance is called what?

Solution

1 - $300

Which of the following is a mixture? Silicon, carbon dioxide, or salt water?

Salt water

1 - $400

Which of the following is not a pure substance? Milk, oxygen, water

Milk

1 - $500

Why is water classified as a compound?

Because it always has 2 hydrogen atoms for each oxygen atom

2 - $100

This kind of change occurs when a material changes shape or size, but the material itself does not change.

Physical

2 - $200

In the following examples, which one is NOT an example of a physical change: boiling water, bursting a balloon, or toasting a marshmallow?

Toasting a Marshmallow

2 - $300

Which of the following is NOT a clue that a chemical change has occurred? Bubbling, production of gas, or change in shape?

Change in Shape

2 - $400

What are three possible clues that a chemical change has occurred?

Production of a gas, smell, change in color, a new substance has been created, heat, light, or sound production

2 - $500

Explain why water breaking down into hydrogen and oxygen is a chemical change.

3 - $100

Flammability is what kind of property?

Chemical

3 - $200

Density is a ____________ property.

Physical

3 - $300

Aluminum’s melting point is 1220 degrees F.

Physical Property

3 - $400

Viscosity is a measurement of how easy something flows. Would this be a physical or chemical property? Why?

Physical

3 - $500

Use 3 words to describe what a chemical property is.

Ability to React

4 - $100

What is another name for a homogeneous mixture?

Solution

4 - $200

In a solution, what is the substance that does the dissolving called?

Solvent

4 - $300

Water is the universal what?

Solvent

4 - $400

True or false: a homogeneous mixture only has 1 substance in it.

false

4 - $500

If I leave a mixture of saltwater out in the sun for a while, the water will eventually evaporate, leaving only the salt. Why is this possible in mixtures?

Because substances in mixtures are only physically combined, not chemically

5 - $100

Which property of water allows it to stick to other things?

Adhesion

5 - $200

Which property of water allows it to stick to itself?

Cohesion

5 - $300

Which property of water allows it to resist changes in temperature?

Specific Heat

5 - $400

Name the 5 main components of the water cycle?

Evaporation, Condensation, Precipitation, Transpiration, Run off

5 - $500

Using the words respiration, decay and photosynthesis, explain the carbon cycle.

Carbon is respired into the atmosphere by living things, carbon is broken down by decay and put back into the environment from wastes and dead

Final Jeopardy

During a science lab, students placed 10 grams of sugar in a test tube and heated it over a burner. The sugar began to melt and turn into a colorless liquid. Continued heating caused the liquid sugar to turn brown. The sugar eventually began to smoke and changed into a solid black residue with a mass of 6.2 grams. What can students conclude from this experiment? –identify the physical and chemical changes.

Physical Changes – Sugar Melting into a liquid

Chemical Changes – Turned Brown, began to smoke, changed into a solid black residue. Change in mass is because 3.8 grams of sugar were released as smoke during the chemical change