vocab-ch-5.pdf

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Daffy Definitions

1. Below are some really silly definitions for words found in thechapter. The number after each word shows the number of lettersin the answer. See how many you can solve!

a. A very weighty subject (7)

b. Opposite of a lubrican (9)

c. Web propulsion (8)

d. Roman five, low metropolis (8)

e. Presently falling forward, alsoforces (10)

f. The weight of 2,000 frics (8)

g. Playground pastime; type offriction (7)

h. 2000 pounds never seenbefore (6)

A-maze-ing

2. Follow the maze below in the proper order to spell out a wordfrom the chapter.

word:

SCIENCE PUZZLERS, TWISTERS &TEASERS 9

Name _______________________________________________ Date ________________ Class_____________

SCIENCE PUZZLERS, TWISTERS & TEASERS

Matter and Motion

Copyrightby

Holt,

RinehartandWinston.

Allrightsreserved.

Start Finish


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Riddles3. Solve the following riddles about terms from the chapter.

a. When the reference point looks for me,

Im not where I used to be.

Im fast and Im slow,

Im there whenever you go.

What am I?

b. On just two things I depend:

How long I took and where Ive been;

Some confuse me with velocity,

Though it is not the same as me

(Well, not exactly).

What am I?

c. From dirt on the road

To water in the ocean,

Im a force that opposes motion.

What am I?

d. Im often quite strong

(I do rhyme with horse);

The unit I use

Is Newtons, of course!

What am I?

Name _______________________________________________ Date ________________ Class______________

10 HOLT SCIENCE AND TECHNOLOGY

Matter and Motion, continued

CopyrightbyHolt,

RinehartandWinston.

Allrightsreserved.


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SCIENCE PUZZLERS, TWISTERS & TEASERS 47

CopyrightbyHolt,

RinehartandWinston.

Allrightsreserved.

The World of Physical Science, p. 1

1. a. graduated cylinder

b. millimeter or micrometer

2. a. conclusion

b. hypothesis

c. density

3. a. volumeb. theory

c. law

d. model

e. area

f. temperature

g. meter

The Properties of Matter, p. 3

1. a. The green ball is more dense, so it has

more mass and therefore more inertia.

b. wax: physical changec. wick: chemical change

d. Binkies inertia

2. a.Weight is a measure of the gravitational

force on an object.

b.Weight is varied depending on where the

object is in relationship to the Earth (or

any other large body in the universe).

c.Weight is measured with a spring scale.

d.Weight is expressed in newtons.

3. a. measure, matter, object

b. constant, object,

object, universe

c. expressed, kilograms, grams, milligrams

States of Matter, p. 5

1. a. Jar A is held by Jess and contains silicon

dioxide, a solid.

b. Jar B is held by Juan and contains nitrogen

monoxide, a gas.

c. Jar C is held by Jill and contains hydrogen

hydroxide, a liquid.

2. plasma, gas, liquid, solid

3. melting, freezing, boiling

vaporization, condensation, sublimation

Elements, Compounds, and Mixtures, p. 7

1. a. nonmetal

b. metal

c. metal

d. metalloid

e. nonmetal

f. metalloid

2. solution

3. a. compound

b. nonmetal

c. mixtures

4. a. magnet

b.filter

c. distillation

Matter and Motion, p. 9

1. a. gravity

b. lubricantc. net force

d. velocity

e. unbalanced

f. friction

Answer Key

Many of the questions in this workbook are open-ended and thus are intended to elicitthoughtful, creative responses. Therefore, in many cases a variety of correct answers arepossible and any reasonable answer should be accepted. Suggested answers are providedbelow for open-ended questions as well as for questions that prompt students for more-specific responses.


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48 HOLT SCIENCE AND TECHNOLOGY

g. sliding

h. newton

2. gravity

3. a. motion

b. speed

c.friction

d.force

Forces in Motion, p. 111.

Ashbys word: force

2. a. projectile motion

b. orbit

c. momentum

d. action/reaction forces

3. Free fall and terminal velocity cannot share a

room, because free fall requires a vacuum

and terminal velocity occurs only when there

is air resistance.

Forces in Fluids, p. 13

1. a. F b. T c. T d. F e. F

Beckys robot is on Mount Everest (33 kPa).

2. a. crate A: 1.0 g/cm3, tan, soccer balls

b. crate B: 0.5 g/cm3, blue, tennis balls

c. crate C: 1.5 g/cm

3

, red, golf ballsWork and Machines, p. 15

1. They are all types of inclined planes.

2. The clocks hand will point to 3:00.

3. a. pulleys

b. Newtons

c. machine

d.fulcrum

e. efficiency

4. Force is expressed in newtons.

5.Work is force times distance.

Energy and Energy Resources, p. 17

1. a. potential, kinetic

b. nuclearc. light

2. a. me, Chan. I calibrated mechanical

b. potent! I already potential

c. are sour celery resource

3. a. biomass

b. wind

c. water

d. geothermal

e. solar

4. a.fossil fuels, peanut butterb.friction, jelly

c. nonrenewable resources, Brussels sprouts

Heat and Heat Technology, p. 19

1. a. absolute zero

b. convection heat

2. a. Fahrenheit

b. insulation

c. convection

3. a. Fahrenheit

b. Kelvinc. Fahrenheit; he wrote in number

designations 8 degrees below where

they originally were.

d. M 2 C

e. Melba: 98.6 Mona: 310 Malik: 106.6

Manuel: 74

Introduction to Atoms, p. 21

1. a. electron

b. proton

c. electrond. neutron

e. proton

2. a. isotope (ice oat Hope)

b. electrons (eel lecture ons)

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RinehartandWinston.

Allrightsreserved.

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