Name:________________________________________________________Date:___________________Period:_______

Review: Matter

Classifying Matter Practice: Classify each of the materials below. In the center column, state whether the material is a pure substance or a mixture. If the material is a pure substance, further classify it as either an element or compound in the right column. Similarly, if the material is a mixture, further classify it as homogeneous or heterogeneous in the right column.

Material Pure Substanceor Mixture

Element, Compound,Homogeneous, Heterogeneous

concretesugar + pure water (C12H22011 + H20)

iron filings (Fe)

limestone (CaC03)

orange juice (w/pulp)

Pacific Ocean

air inside a balloon

aluminum (Al)

magnesium (Mg)

acetylene (C2H2)

tap water in a glass

soil

pure water (H20)

chromium (Cr)

Chex Mixsalt + pure water

(NaCl + H20)

benzene (C6H6)

muddy waterbrass

(Cu mixed with Zn)

baking soda (NaHC03)

Match the definition to the word. The definitions are slightly different from what you have seen before. Column A

1. Substance

2. Mixture

3. Heterogeneous mixture

4. Matter

5. Element

6. Solution

7. Compound

Column B

A. Made of 2 types of matter that can be physically separated

B. Any two samples might not be the same

C. A mixture where two samples will have the same makeup

D. Has only one kind of atom in the sample

E. Contains two or more kinds of atoms that cannot be physically

separated

F. Anything that has mass and takes up space.

G. Anything that cannot be separated by physical means

Elements, Compounds, & Mixtures: Classify each of the pictures below by placing the correct label in the blanks below.

A = Element D = Mixture of compoundsB = Compound E = Mixture of elements and compoundsC = Mixture of elements

Each circle represents an atom and each different color represents a different kind of atom. If two atoms are touching then they are bonded together.

PHYSICAL AND CHEMICAL PROPERTIES AND CHANGES

PHYSICAL PROPERTY CHEMICAL PROPERTYobserved with senses indicates how a substance reacts with something elsedetermined without destroying matter matter will be changed into a new substance after the

reaction

Identify the following as a chemical (C) or physical property (P):

_______1. blue color _______8. melting point

_______2. density _______9. reacts with water

_______3. flammability (burns) _______10. hardness

_______4. solubility (dissolves) _______11. boiling point

_______5. reacts with acid _______12. luster

_______6. supports combustion _______13. odor

_______7. sour taste _______14. reacts with air

PHYSICAL CHANGE CHEMICAL CHANGEa change in size, shape, or state a change in the physical and chemical propertiesno new substance is formed a new substance is formed

Identify the following as physical (P) or chemical (C) changes.

_______1. NaCl (Table Salt) dissolves in water. _______9. Milk sours.

_______2. Ag (Silver) tarnishes. _______10. Sugar dissolves in water.

_______3. An apple is cut. _______11. Wood rots.

_______4. Heat changes H2O to steam. _______12. Pancakes cook.

_______5. Baking soda reacts to vinegar. _______13. Grass grows.

_______6. Fe (Iron) rusts. _______14. A tire is inflated.

_______7. Alcohol evaporates. _______15. Food is digested.

_______8. Ice melts. _______16. Paper towel absorbs water.

Physical and Chemical Changes

Can you recognize the chemical and physical changes that happen all around us? If you change the way something looks, but haven’t made a new substance, a physical change (P) has occurred. If the substance has been changes into another substance, a chemical change (C) has occurred.

Read each scenario. Decide whether a physical or chemical change has occurred and give evidence for your decision.

ScenarioPhysical or Chemical Change?

Evidence…

1.Yumm! A student removes a loaf of bread hot from the oven. The student cuts a slice off the loaf and spreads butter on it.

2.Your friend decides to toast a piece of bread but leaves it in the toaster too long. The bread is black and the kitchen if full of smoke.

3.You forgot to dry the bread knife when you washed it and reddish brown spots appeared on it.

4.

In baking biscuits and other quick breads, the baking powder reacts to release carbon dioxide bubbles. The carbon dioxide bubbles cause the dough to rise.

5.You take out your best silver spoons and notice that they are very dull and have some black spots.

6.A straight piece of wire is coiled to form a spring.

7.Food color is dropped into water to give it color.

8.

Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change.

9.In a fireworks show, the fireworks explode giving off heat and light.

Physical and Chemical Changes: True (T) or False (F)

1. Changing the size and shapes of pieces of wood would be a chemical change.

2. In a physical change, the makeup of matter is changed.

3. Evaporation occurs when liquid water changes into a gas.

4. Evaporation is a physical change.

5. Burning wood is a physical change.

6. Combining hydrogen and oxygen to make water is a physical change.

7. Breaking up concrete is a physical change.

8. Sand being washed out to sea from the beach is a chemical change.

9. When ice cream melts, a chemical change occurs.

10. Acid rain damaging a marble statue is a physical change.

States of Matter and Phase Changes:

Please answer the following questions:

1. Fill in the circles with the information about shape, and volume in each state of matter:

Solid Liquid Gas

2. If you move a substance from one container to another and the substance has a different volume in the second container, is the substance a solid, a liquid, or a gas? _________________

3. Match each term with the letter of the phase-change description that best describes it:1. ________ deposition a. solid to gas2. ________ freezing b. liquid to gas3. ________ sublimation c. gas to solid4. ________ melting d. liquid to solid5. ________ vaporization e. gas to liquid6. ________ condensation f. solid to liquid

4. On the diagram below please fill in the names of the phase changes in the appropriate places:

Gas

Liquid Solid

5. Define both “endothermic” and “exothermic”.

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6. Which three phase changes are endothermic?1. _______________________2. _______________________3. _______________________

7. Which three phase changes are exothermic? 1. _______________________2. _______________________3. _______________________

8. What are the other two states of matter we talked about (beside solid, liquid, and gas)? At what temperatures do they occur?

9. During a phase change, what does the temperature of a substance do?

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10. What does Kinetic Theory of matter state?

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11. Water boils when its vapor pressure becomes equal to the ____________________ ___________________.12. Name and describe the two types of vaporization:

______________________________________________________________________________________________________________________________________________________________________________________________

Describe For each substance:

Attraction between particles

Speed that particles are moving Temperature

Substance A

Substance B

Substance C

Use the graph below to answer the questions.

What is the boiling point of the substance? _______________________What is the freezing point of the substance? _______________________What is the melting point of the substance? _______________________What does this tell you about the melting and freezing point of a substance? ___________________What letter represents the range where the solid is being warmed? _______________________What letter represents the range where the liquid is being warmed? ______________________What letter represents the range where the vapor is being warmed? ______________________What letter represents the melting of the solid? _______________________What letter represents the vaporization of the liquid? _______________________What letter represents condensation?_______________________

Classifying Matter Flow Chart:

Fill in the blanks below and give an example of the bottom four.

Example:

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Example:

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Example:

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Example:

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