Physical Science Trimester 1 Exam

Please fill in the blank for the missing steps
STEP 1:
STEP 2: Form a hypothesis
STEP 3:
STEP 4: Analyze data
STEP 5:
STEP 6: Communicate Results

STEP 1: Make observations
STEP 2: Form a hypothesis
STEP 3: Conduct an experiment
STEP 4: Analyze data
STEP 5: Accept/reject hypothesis
STEP 6: Communicate Results

What is the scientific method?

A list of steps a scientist takes in order to start and complete an experiment.

What is a hypothesis?

An educated guess based on prior knowledge or the information given to you.

Draw King Henry’s Ladder:

Kilo
Hecto
Deka
Base
Deci
Centi
Milli

1. 1000mg= g 2. 1 L= mL
3. 160 cm= mm 4. 14 km= m
5. 109 g= kg 6. 10m= km

1.1
2.1000
3.1600
4.14000
5.0.109
6.0.010

Matter

Any thing that takes up space and has mass.

Mass

The amount of matter in an object.

Volume

The amount of space an object
takes up.

Density

Mass divided by volume

Weight

The force of gravity pushed upon you.

Atom

The basic particle from which all elements are made of.

Endothermic

A change in which energy is absorbed.

Exothermic

A change in which energy is released.

Element

A substance that can not be broken down into any other substance by chemical or physical means.

Compound

A substance made of two or more elements chemically combined in a specific ratio, or proportion.

Mixture

Two or more substances that are together in the same place but their atoms are not chemically bonded.

Law of Conservation of Mass

The fact that matter is not created or destroyed in any chemical or physical change.

Thermal energy

The total energy of the motion of all the particles in an object.

How do you find the density of an irregular shaped object (marble)?

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How do you find the density of a regular shaped object (block of wood)?

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Define the following as being a physical or chemical property:
1. Solubility
2. State
3. Density
4. Volume
5. Reactivity
6. Flexibility
7. Flammability

1.
2.
3.
4.
5.
6.
7.

Define the following as being physical or chemical changes:
Melting
1. Change in color or odor
2. Bubbling/fizzing
3. Change of state
4. Rusting
5. Tarnishing
6. Crushing
7. Souring milk

1.
2.
3.
4.
5.
6.
7.

Calculate the density of:
1. An object with a mass of 10g and a volume of 5cm3

2. An object with a mass of 120g and a volume of 30cm3

3. An object with a mass of 1200g and a volume of 3mL

1.
2.
3.

List 3 clues that a chemical change might be occurring.

1. Two substances form from one substance.
2. The substance has a different boiling point.
3. The substance is fizzing or bubbling.

Give 5 ways to separate a mixture.

1. Flitration
2. Magnetism
3. Pick it apart by hand
4. Distillation
5. Evaporation

What are the 2 types of mixtures and how do they differ? Give 2 examples of each.

Homogenous and Heterogenous
Homogenous is something that can't be separated from just looking at it a picking it away by hand, but heterogenous is something that you could pick away by hand.

Homogeneous/ Brewed coffee/wine
Heterogeneous/ Soil/sea water

Viscosity

A liquids resistance to flowing.

Surface tension

The result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together; causes the surface to act as if it has a thin skin.

Change of state

Change in appearance.

Fluid

Any substance that can flow.

Pressure

The force pushing on a surface divided by the area of that surface.

State Charles’s Law and give an example

A principle that describes the relationship between the temperature and volume of a gas at constant pressure.

State Boyle’s Law and give an example

A principle that ascribes the relationship between the pressure and volume of a gas at constant temperature.

What happens to the energy of the particles when they change state?

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What are the 2 types of vaporization and how do they differ?

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Be able to label a change of state graph (workbook/worksheet).

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