Name

Date

Directed Reading for Content Mastery

Class

Overview Classification of Matter

Directions: Complete the concept map using the terms in the list below. heterogeneous compound

elements substances

homogeneous mixtures

Matter

is composed of various

1.

which, when made up of like atoms, are

of which two or more may combine in an easily separated manner to form

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

2.

of which two or more may form a

3.

4.

which, if blended evenly throughout, are

which, if the different materials are easily distinguished, are

5.

6.

Directions: Circle the term in parentheses that makes each statement correct. 7. A beam of light is (visible, invisible) as it passes through a solution, but (can, cannot) be seen as it passes through a colloid. 8. Appearance and behavior are (chemical, physical) properties. 9. The change of one substance to another is a (chemical, physical) change. 10. When substances go through a chemical change, mass is always (gained, lost, conserved). Classification of Matter

15

Name

Date

Directed Reading for Content Mastery

Section 1



Class

Composition of Matter

Directions: Choose the correct category from the list for each item. Each category will be used more than once. 1. chalk

a. element

2. copper

b. compound

3. granite

c. suspension

4. vinegar

d. heterogeneous mixture

5. pond water

e. homogeneous mixture

6. water

f. colloid

7. salt 8. permanent press fabric 9. soft drink 10. paint 11. gold 13. fog 14. gelatin 15. lead Directions: Complete the sentences by writing the letters of the correct terms on the lines provided. 16. All substances are built from _____ . a. elements c. metal b. atom d. salt 17. A beam of light can be seen as it passes through a(n) _____ . a. colloid c. element b. solution d. compound 18. A _____ is a homogenous mixture of particles so small they cannot be seen and will not settle to the bottom of their container. a. colloid c. element b. solution d. compound 16 Classification of Matter

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

12. a river delta

Name

Date

Directed Reading for Content Mastery

Section 2



Class

Properties of Matter

Directions: Complete the paragraphs using the terms listed. Some terms may be used more than once. liquid physical change chemical change mixture physical properties physical property distillation equals melting conservation of mass Scientists try to explain how changes in substances take place. By applying energy, you can tear a sheet of paper into pieces and cause a 1. ____________________ ____________________ in the paper. On a hot summer day, water vapor will condense into water droplets on the outside of a glass of iced tea. The glass of iced tea is a 2. ____________________ of sugar, tea, lemon, and water. Water is a clear, colorless 3. ____________________ at room temperature. The words clear and colorless describe two 4. ____________________ ____________________ of water. The melting of the ice in iced tea is a 5. ____________________ Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

____________________. In comparison, a 6. ____________________ ____________________ produces new substances. When a candle burns, physical and chemical changes take place. The 7. ____________________ of the wax is a physical change. The wick, as it burns, combines with gaseous oxygen in air. After the chemical change, water vapor and carbon dioxide gas are formed. The mass of all substances before a chemical change 8. ____________________ the mass of all substances after a chemical change. This is called the law of 9. ____________________ ____________________ ____________________ To separate a solid from a liquid, such as salt from seawater, a process using the 10. ____________________ ____________________ of boiling point called 11. ____________________ is used.

Classification of Matter

17

Name

Date

Class

Key Terms Classification of Matter

Directed Reading for Content Mastery

Directions: Unscramble the terms in each of the following statements. Write the term in the blanks at the left of the statements and then circle the term in the word search puzzle. 1. A(n) ethgnesuoereo mixture has different materials that can be easily distinguished. 2. A homogeneous mixture with particles so small they cannot be seen without a microscope is a(n) tuolsion. 3. A(n) ssinnopseu is a liquid heterogeneous mixture in which visible particles settle. 4. A(n) ooudnmpc is a material made from atoms of two or more combined elements. 5. If all the atoms in a sample of matter are alike, that kind of matter is a(n) neemetl. 6. A(n) oogosuenehm mixture has two or more substances blended evenly throughout.

8. Size, shape, and melting point are hsypialc properties. 9. A burnt object has undergone a aheicmcl change. 10. The law of ionrtcvaeson of mass states that mass is not gained or lost during chemical changes. B H H E T

T E R O G E N E O U S

E O P P R O L O N Z H C O

N P M

I

H M Q L

I

O

C

I

O P

S

M C E R M G H

N

L N C Y H

R O O C O M P O U N D D E O C G O P E T

I

C S E S A T R D E

L M P

C O N S E R V A T

I

M Y

E

O N C

S S

P

L E

A

C

I

S

Y N D A L

L

I

C

U

C U M C A T D M C R Y M S A

S

E M E N T U

G T O O

I

S T

E E S O L U T

18 Classification of Matter

I

I

E R E L I

N

I

O N

L

I

B

Y L

I

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

7. The scattering of light by colloids and suspensions is called the lyTdnal effect.

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