Name ______

Physical and Chemical TEST

Complete the blanks with the appropriate term:

chemical property physical property

  1. Volume is an example of a ______.
  2. Boiling Point is an example of a ______.
  3. Density is an example of a ______.
  4. Flammability is an example of a ______.
  5. Color is an example of a ______.
  6. Reaction to oxygen is an example of ______.

Complete the blanks with the appropriate term:

chemical changephysical change

  1. Kara mixed together vinegar and baking soda and observed the production of a gas. Kara observed a ______.
  2. Diana is boiling water to make spaghetti. As it boils, she notices a vapor coming off the top. Diana observed a ______.
  3. Jeremy is making a sandwich and cuts a slice of bread for himself. The loaf’s original length was 20 cm, now it is 18 cm. Jeremy has observed a ______.
  4. Elizabeth adds silver nitrate to a solution of potassium chlorides and notes that a white substance is now falling out of the solution. Elizabeth observed a ______.
  5. Ben is cooking breakfast for his family and notices the eggs he is making turn from clear to opaque. Ben has observed a ______.

1. In a chemical change

a) a new substance is formed, different from the original material..

b) mass is destroyed.

c) mass is created.

d) the form of a substance stays the same.

2) Which of the following is a physical change?

a) Iron is oxidized to iron oxide

b) Aluminum metal is pounded into thin sheets

c) Copper reacts with a strong acid

d) Sodium metal explodes on contact with water

3) Which of the following is an example of a chemical change?

a) melting solid gold

b) burning hydrogen gas

c) water boils and turns into water vapor

d) breaking a sheet of glass

4) Which of the following is a common sign that a chemical change has occurred?

a) A chemical has changed size.

b) A chemical has changed to a different state (solid, liquid or gas)

c) A chemical has become a different shape.

d) A chemical has turned a different color.

5) When silver metal comes in contact with sulfur, silver sulfide forms and the

silver appears darker. This is a

a) change of form

b) chemical change

c) change of state

d) physical change

6) Two solutions are added together and the new solution becomes hot. This tells

you that

a) a gas is being produced.

b) the solutions are not soluble.

c) the physical properties are the same.

d) a chemical change is taking place.

8) Jolene wants to experiment with sugar cubes. Which of the following causes a

sugar cube to only change physically, not chemically?

a) burning the sugar cube with a match

b) crushing the sugar cube and putting it in water

c) dehydrating the sugar cube with sulfuric acid

d) chewing the sugar cube and digesting it

9) A physical change occurs when…

a) both the appearance of a substance and its identity change.

b) the appearance of a substance changes but its identity does not.

c) the identity of a substance changes but its appearance does not.

d) neither the appearance of a substance nor its identity changes.

10) Diane draws a picture on a piece of paper and then folds it into a paper

airplane. She throws it at her little brother, and its hits him in the head. He

responds by ripping up the paper. Which of the following is an example of a

physical change?

a) ripping up the paper

b) folding the paper into an airplane

c) drawing on the paper

d) all of these

Bonus – METRIC CONVERSIONS (Worth 3 points each)

  1. 765 L = ______mL
  1. 0.865 kg = ______g
  1. 15.89 km = ______cm
  1. 4.976 cg = ______g

Bonus – DENSITY (Worth 3 points each) D= M/V

  1. What is the density of a substance that has a mass of 80 g and a volume of 20 cm3?
  1. What is the density of a metal cube that is 3cm by 6cm by 2 cm with a mass of 15 g?

JOKE OF THE DAY:

A small piece of sodium which lived in a test tube fell in love with the Bunsen burner:

"Oh Bunsen, my flame. I melt whenever I see you", the sodium pined.

"It's just a phase you're going through," replied the Bunsen burner.