Vocabulary
Properties
CER
Does it change? (Is it a property?)
Density Practice
100

What is density?

mass รท volume OR the amount of mass in one unit of volume of a substance

100
This is the property where you see what temperature causes a substance to change from a solid to a liquid.

Melting Point

100

What does each letter of CER stand for?

Claim, Evidence, Reasoning

100

True or False:

Shape is a property.

False

100

An object has a mass of 40 grams and a volume of 8 cm3. What is its density?

5 g/cm3

200

What is melting point?

the temperature at which a substance begins to change from a solid to a liquid

200

This is the property where you test if a substance can scratches or gets scratched by another substance.

Hardness

200

How long should your claim be?

One sentence.

200

True or False:

The density of an object stays the same, no matter the size of the object.

True

200

An object has a mass of 42 grams and a volume of 6 cm3. What is its density?

7 g/cm3

300

What is solubility?

the ability of a solid to dissolve in a liquid

300

This property tests whether a solid can be dissolved into a liquid.

Solubility

300

Which part of the CER includes many examples to prove your point.

Evidence

300

Which of the following is NOT a property?

Melting Point, Solubility, Weight, Hardness

Weight

300

An object has a mass of 108 grams and a volume of 10 mL. What is its density?

10.8 g/mL

400

What is a property?

a characteristic that helps identify or distinguish a substance

400

This property shows the amount of matter in one unit of a substance.

Density

400

How much evidence should you give to support your claim?

As much as possible.

400

Mass and volume are not properties. Why is this?

They change based on the size of the substance.

400

An object has a volume of 20 cm3 and a mass of 10 grams. What is its density?

0.5 g/cm3

or

1/2 g/cm3

500

Compare a substance and a mixture.

A substance is made of one particle all the way through it. A mixture is made of 2 or more substances that do not combine together to make something new.

500

This property tests whether a substance can be hammered or rolled into a specific shape.

Malleability

500

All of your evidence in a CER should be based on...

Facts, examples, data, information, etc.

500

Melting point is a property. Does every substance have a melting point? Explain your answer for credit.

Yes, every substance can be turned into a solid which can then be melted at a certain temperature.

500

An object has a density of 4 g/mL. If it has a mass of 24 grams, what is its volume?

6 mL

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