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Conservation of Matter

Total questions: 14

Worksheet time: 9mins

Name
Class
Date
1.

When ice melts, the water has the same _________ as the

a)

temperature

b)

state of matter

c)

shape

d)

mass

2.

15 grams of sugar are dissolved into 300 grams of water. what is the mass of the mixture?

a)

15

b)

315

c)

285

d)

300

3.

250 grams of iron and sand are separated. The mass of the sand is 150 grams. What is the mass of the iron?

a)

is it impossible to determine.

b)

100 grams

c)

150 grams

d)

250 grams

4.
An oreo cookie weighs 20 grams.  It gets crushed into crumbs for a recipe.  How much do its crumbs weigh?
a)
15 grams
b)
25 grams
c)
20 grams
5.

Sarah and Jake were each given a ball of clay that has a mass of 400 grams. Both students used all their clay to make an object. Sarah rolled hers into a ball, and Jake made a long, skinny rope. What is the mass of the clay figures now?

a)

Sarah's weighs more because it is round

b)

Jake's weighs more because it is long

c)

There is no way of knowing

d)

They figures would have equal masses.

6.

If reaction starts with 20g of reactants, it will produce ---

a)

a total of 40g of product

b)

a total of 10g of product

c)

a total of 80 g of product

d)

a total of 20g of product

7.

In a reaction A + B ----> C.

Reactant A has 5g and product C has 9g.

How many grams does reactant B should have?

a)

4g

b)

5g

c)

9g

d)

14g

8.
If there are 4 H atoms on the reactant side, how many H atoms will be on the product side? 
a)
2
b)
4
c)
6
d)
You need more information to answer this question
9.

The Law of Conservation of Matter states that the total amount of matter _____ after it undergoes change.

a)

disappears

b)

stays the same

c)

weighs less

d)

explodes

10.
What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
11.

What is the right part of a chemical equation called?

2H2 + O2 --> 2H2O

a)

Reactants

b)

Products

c)

Yields

d)

Chemical Equation

12.

You have a bag of groceries that weighs 15 kg. It has 3 kg of fruit, 2 kg of cereal, and 5 kg of meat. How many kg of soup must it have?

a)

2 kg

b)

8 kg

c)

1 kg

d)

5 kg

13.

iI each cube has a mass of 3 grams, what is the total mass of the cubes that spell out "cage"?

a)

12 grams

b)

3 grams

c)

20 grams

d)

9 grams

14.

The Law of Conservation of Matter states that...

a)

matter can simply appear.

b)

matter can neither be created nor destroyed.

c)

matter can simply disappear.

d)

matter can change form between a solid, liquid, and gas.