BCLN Science 7 - Rev. Sept/2015
Using a pencil, complete the following notes as you work through the related lessons. Show ALL work as is explained in the lessons. You are required to have this package completed BEFORE you write your unit test. Do your best and ask questions if you don’t understand anything!
1.
What is matter?
2.
Describe the three states of matter.
1.
2.
________________
_________________
3.
_________________
3.
Using the different tabs, determine what state each type of matter will be at the given temperature?
Oxygen at 150 0 C ___________________
Copper at -100
0
C ___________________
Water at 50 0 C ______________________
4.
Brad says that the freezing point of water is 0
0
C and Brent says that the melting point of water is 0 0 C. Which student is correct? Why?
5.
What is a qualitative property?

BCLN Science 7 - Rev. Sept/2015
1.
What does mass actually measure?
2.
What are some common units of measurement for mass?
3.
What changes for an object on the moon? What stays the same?
4.
What is volume?
5.
What are some common units of measurement for a liquid volume?
6.
What is the formula for the volume of a rectangular solid?
__________ × ____________ × ___________
7.
The volume of an irregular solid can be measured using the ______________________ method.
8.
Convert each volume to the unit indicated in brackets.
3600 g =___________________________ kg
3 L
500 g
20 cm
3
=___________________________ mL
=___________________________ kg
=___________________________ mL
2.5 kg
260 mL
=___________________________ g
=___________________________ L
8 500 000 g =___________________________ kg
3 L =___________________________ cm
3

BCLN Science 7 - Rev. Sept/2015
9.
Find the volume of each object, showing all calculations. Do not forget to include your units. Remember length × width × height. b.
a. a.
b.
_______ × ______ × _______ = _______ _______ × ______ × _______ = _______
1.
What is density?
2.
How are mass and density different? Give an example.
3.
How do we calculate density?
4.
What is buoyancy?
5.
What is water's density (include units)?
6.
Items will float on water if their density is __________________________?

BCLN Science 7 - Rev. Sept/2015
7.
Does automobile oil float on water? Why?
8.
Why is water uncommon?
9.
Do gases have density and which gas are they compared to? Give an example of a gas with more or less density.

BCLN Science 7 - Rev. Sept/2015
Properties of Matter Answers:
1.
Everything around you is matter.
2.
1.solid
2.liquid
Solid matter has a fixed shape liquid matter is a fluid and takes the shape of the container it is in gas has no fixed shape but will fill the container it is in. 3.gas
3.
Oxygen at 150
0
C – vapour, Copper at -100
0
C –solid, water at 50
0
C - liquid
4.
Both students are correct. The melting and freezing point of water are the same. Zero degrees is when water is changing from one state to another in this case, liquid to solid and vice versa.
5.
Qualitative properties can be observed with your senses, such as colour, odour and shape.
Mass and Volume Answers:
1.
Mass measures the amount of matter in an object.
2.
Mass is typically measured in grams and kilograms.
3.
The mass of an object on the moon will remain the same as on earth, but the weight may change because there is less gravity on the moon.
4.
Volume is the measure of the amount of space that is occupied by matter.
5.
Liquid volume is typically measured in liters and milliliters.
6.
The volume of a rectangular solid = length × width × height = ______
3
.
7.
The volume of an irregular solid can be measured using the displacement method.
8.
Convert each volume to the unit indicated in brackets.
3600 g = 3.6 kg
3 L
500 g
20 cm
3
2.5 kg
260 mL
= 3000
= 0.5
= 20
= 2500
= 0.26
8 500 000 g = 8500
3 L = 3000
9.
a. 10 cm × 6 cm × 5 cm = 300 cm 3 b. 5 m × 2.5 m × 3 m = 37.5 m
3
Density Answers: mL kg mL g
L kg cm
3
1.
When you compare masses of two objects with the same volume, you are considering density
2.
Something with a large mass may not be very dense, and vice versa. The amount of mass in a unit volume of a substance is its density. Example, oil is less dense than water so it will float on top of water.
3.
To calculate density we divide the mass of an object by its volume.

BCLN Science 7 - Rev. Sept/2015
4.
Buoyancy is how well an object will float.
5.
Water has a density of 1.0 g/mL.
6.
Items will float on water if their density is less than 1.0 g/mL.
7.
Yes, automobile oil will float on water because its density is 0.87 g/mL.
8.
Water is uncommon because its solid is less dense than its liquid form, and it will float.
9.
The density of gases is compared to air. An example of a gas less dense than air is helium.