MC	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

Which of the following is NOT a physical property of matter?

a. phase (solid, liquid, gas)

b. hardness

c. shape

d. flammability

Correct Answer: d

MC	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

How do you know when something is a solid?

a. It will pour.

b. It takes the shape of its container.

c. It cannot be seen easily.

d. It will hold its shape by itself.

Correct Answer: d

E	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

What does a physical property tell you about a substance?

Correct Answer:

What it looks like, how it behaves.

P	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

Activity Description:

Students will test a substance and find its physical properties. They will share their information with the class.

Materials Needed:

Substances (number and amount depends on whether students work in groups or individually) examples: water, wood, plastic, metals, salt, soap, wax, fabric, corn starch, backing soda, glass, clay.

Test materials ∆ magnets, batteries, wires, light bulbs, hand lens, water, spoons, heat source (candle, alcohol burner, hot plate), goggles, aluminum foil, tongs, aprons.

Prior to Assessment:

Students should be familiar with the following: what a physical property is and what some of the properties are. Properties such as flexibility, color, density (relative weight for its size) should not be overlooked. Liquids can be tested for pourability, stickiness, or transparency. Students may need help understanding electrical conductivity. A typical test with a light bulb in a circuit should be demonstrated. Safety with your heat source should be discussed and how to test using the heat should be explained. If this test is too difficult in your situation, drop it.

Time Needed:

2-3 forty-five minute periods

Procedure:

1. Students are assigned a substance and should (on paper) describe five physical properties they can test (or observe) with their substance.

2. Stations may be set up around the room they can visit to test their substance. The heating station may need special attention from the teacher. A small amount of the substance can be placed on a piece of aluminum foil and placed over the heat. Tongs should be available to handle it. Goggles and aprons should be worn around heat in case of spattering.

3. Students should write down all their findings. Emphasize that a substance that did nothing in the test, still reacted.

4. Students can prepare a short presentation to ÒintroduceÓ their substance. They should describe it and its physical properties completely.

Scoring Guide:

1. Student describes five properties to test on their substance. 5 points

2. Student records data from each test performed. 5 points

3. Presentation is complete and substance is fully described as to its

physical properties. 5 points

MC	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

What evidence show that ice has a physical change when left out in a room?

a. It reacts with oxygen in the air.

b. It changes to water.

c. It is hard and white.

d. It is cold to the touch.

Correct Answer: b

I	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

The following data were collected by testing four substances.  Each was tested to see if it floated in water, burned when lit with a flame, or melt when heated. 

Substance	Floated in Water	Burned when lit	Melted when heated
A	Yes	Yes	No
B	No	No	No
C	Yes	Yes	No
D	No	No	Yes

1.  Which substance had a physical change?

a.  A

b.  B

c.  C

d.  D

2.   Which of the tests is reversible?

a.  floating in water

b.  burning when lit

c.  melting when heated

Correct Answers:

1. d

2. c

I	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

Martha wished to cool off a can of soda pop quickly.  She put it in the freezer but then forgot it.  When she went back the next day, the soda was all over the freezer and the can was ripped open. 

1.  Martha decided that a physical change had occurred when the pop expanded.  What evidence supports her?

a.  The can was stuck to the freezer.

b.  No new substances had formed.

c.  The pop had changed from brown to blue.

d.  Both the pop and can were very cold.

2.  Martha wondered if all substances would do the same thing as the soda.  How could she design an experiment to find out?

a.  Pour the same amount of 4 different liquids into ice cube trays.  Wait one day and measure sizes.

b.  Put 1 can of soda in the freezer and 1 can in the refrigerator.  Wait two days

c.  Put 4 cans of soda in the freezer and leave overnight.

d.  Open 1 can of soda and donÕt open the other.  Place both in the freezer and wait a day.

Correct Answers:

1. b

2. a

E	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

Identify two physical changes that you observe daily.

Possible Answers:

Ice forming

Water boiling or evaporating

Clothes drying

Wax melting

Tearing paper

Opening a can

P	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

Activity Description:

Students will keep a log of the physical changes they see or use during a single day.

Materials Needed:

Logbook

Prior to Assessment:

Students should know the definition of a physical change. They should have had experience identifying them.

Time Needed:

1 day, 40 minutes of class time

Procedures:

1. Students should be given a logbook or suggestion where to keep the log in a notebook, journal, etc.

2. Each observation should have a description of the event and should describe the substance before and after the change.

3. Students should be given the following scoring guide to help them understand what is expected.

Scoring Guide:

1. Each observation is clearly described. 10 points

2. The substances are described before and after. 10 points

3. At least 10 observations are recorded. 10 points

MC	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

Which of these describes paper after it has been through a physical change?

a. It has been mixed with turmeric and rubbing alcohol to change color.

b. It has been burned and is now a pile of ashes.

c. It has been rolled into paper logs and burned for firewood.

d. It has been cut into smaller pieces to make note cards.

Correct Answer: d

E	5^th Grade	Standard: 01
Objective: 02. Evaluate evidence that indicates a physical change has occurred.
ILO:

Describe what happens to an ice cube left out on a plate in a warm room. Tell what the ice cube looks like and what will happen next. Name all the forms of matter that might appear and tell what they look like.

Correct Answer:

The ice cube looks square and is a hard solid. It will melt into a clear liquid, water. The water will evaporate into a gas that is invisible.