Science - Chapter 1 - Test 9/6/13

Question 1

Never ________ across a flame.

Answer 1

reach

Question 2

What is an experiment used for?

Answer 2

to test your hypothesis

Question 3

in an experiment, used for comparison; cannot change

Answer 3

control

Question 3

in an experiment, the factor that is tested, can affect results of an experiment

Answer 3

variable

Question 4

Some models are used to communicate ____________________ and ideas to other people.

Answer 4

observations

Question 4

Models can _______ predictions.

Answer 4

test

Question 5

What 2 things are used to classify objects into categories?

Answer 5

1. ) properties
2. ) criteria

Question 6

Always ________ safety ________ whenever you are working with chemicals or other substances that might get into your ______.

Answer 6

1. ) wear
2. ) goggles
3. ) eyes

Question 6

Observation or Inference

Daniel likes winter because he lives in New York.

Answer 6

Inference

Question 7

List the steps of the scientific method in order.

Answer 7

1. ) State the problem.
2. ) Form a hypothesis.
3. ) Design and carry out experiment.
4. ) Record and analyze data.
5. ) Draw conclusion.

Question 8

Describe computer models.

Answer 8

can be seen on a computer screen but not touched

Question 8

Name 2 things that you do with the data from your experiment.

Answer 8

1. ) Record data
2. ) Analyze data

Question 8

Observation or Inference

The fire alarm made noise because there was a fire.

Answer 8

Inference

Question 9

a process that uses certain skills to solve problems

Answer 9

critical thinking

Question 9

Observation or Inference

A student went to the main office because she was bad.

Answer 9

Inference

Question 10

Observation or Inference?

The car stopped running.

Answer 10

observation

Question 11

the process of using the senses to determine properties of an object or event

Answer 11

observation

Question 13

Describe idea models.

Answer 13

concepts that describe how someone thinks about something in the natural world

Question 14

Observation or Inference

The baby birds are chirping because they are hungry.

Answer 14

inference

Question 14

The ________ variable is what we measure in an experiment.

Answer 14

dependent

Question 15

Observation or Inference

A woman with a Yankees shirt on likes baseball.

Answer 15

Inference

Question 16

A model built using software that you can see on a computer screen is a ____________________ model.

Answer 16

computer

Question 16

What do you do instead of smelling a chemical directly from a container?

Answer 16

wave your hand over the opening of the container and spread the fumes towards your nose

Question 17

Never _________ smell a chemical directly from a container.

Answer 17

smell

Question 19

What does the SI use to measure mass?

Answer 19

kilogram

Question 20

Name 3 basic types of models.

Answer 20

1. ) physical models 2. ) computer .) idea models

Question 21

representation of an object or event used as a tool for understanding the natural world

Answer 21

model

Question 22

Models __________________________ as new observations and discoveries are made.

Answer 22

change over time

Question 23

What does the SI use to measure length?

Answer 23

meters

Question 24

The process of drawing a conclusion about a specific event based on observations and data; may include cause and effect relationships

Answer 24

inference

Question 26

What is the International System of Units (SI)?

Answer 26

Standard system of measurements used by scientists; aka = metric system

Question 26

Equipment must be _______ to its proper place.

Answer 26

returned

Question 27

Never ______ a chemical unless you are instructed by your teacher to do so.

Answer 27

taste

Question 28

Observation or Inference There were 15 students on the school bus.

Answer 28

Observation

Question 30

Observation or Inference? The Texas Rangers are first in their division.

Answer 30

observation

Question 31

What question do you ask in the conclusion?

Answer 31

Was this hypothesis correct or incorrect?

Question 32

Immediately notify your ______ if any chemical gets on your skin or clothing to find out what to do to ________ it off.

Answer 32

1. ) teacher 2. ) wash

Question 33

After your investigation, you can use the results of your experiments to draw \_\_\_\_\_\_\_\_\_\_.

Answer 33

a conclusion

Question 34

a series of planned steps used to solve a problem

Answer 34

scientific method

Question 35

Observation or Inference The fence is 4 meters high.

Answer 35

Observation

Question 36

Describe physical models.

Answer 36

can be seen and touched

Question 37

Name 3 ways to describe a hypothesis.

Answer 37

1,) a prediction that can be tested 2. ) "educated guess" 3. ) a suggestion based on known information

Question 38

Never use _______ or chipped glasware

Answer 38

broken

Question 39

Observation or Inference The dog has long ears.

Answer 39

Observation

Question 40

Observation or Inference The grass was wet because the sprinkler was on.

Answer 40

Inference

Question 41

Keep your work area \_\_\_\_\_\_\_.

Answer 41

clean

Question 42

Always __________ your work area & equipment after an experiment is completed.

Answer 42

clean up

Question 44

What do models communicate?

Answer 44

Models communicate observations and ideas

Question 45

Never _______ or\_\_\_\_\_\_\_\_ someone else in the lab.

Answer 45

1. ) run 2. ) push

Question 46

way of studying things and learning about the natural world

Answer 46

science

Question 47

A mobile that shows our solar system is a ____________________ model.

Answer 47

idea

Question 48

In any good experiment, the scientist needs to ________ the hypothesis.

Answer 48

create

Question 50

Name 3 things that a theory does.

Answer 50

1. ) usually explains many hypotheses 2. ) explanation of things or events based on scientific knowledge 3. ) result of many observations and experiments

Question 52

The problem must be in the form of a \_\_\_\_\_\_\_\_\_.

Answer 52

question

Question 53

What does the SI use to measure volume?

Answer 53

liter

Question 54

Name 2 types of data.

Answer 54

1. ) measurements 2. ) observations

Question 55

Immediately notify your teacher if you get _________ or have another ________ when performing an experiment.

Answer 55

1. ) cut 2. ) injury

Question 57

the one variable that is purposely changed to test a hypothesis

Answer 57

independent variable

Question 58

Name 2 ways to describe a law.

Answer 58

1. ) "A rule of nature” 2. ) statement that describes a natural event or phenomenon

Question 60

Read and ____________ exactly as they are written.

Answer 60

follow all directions

Question 61

A logical answer based on data & observations

Answer 61

conclusion

Question 61

The process of grouping or ordering objects or events

Answer 61

classification

Question 62

Observation or Inference Mrs. Tarantino has blue eyes.

Answer 62

Observation

Question 64

Name the 5 senses we use to make an observation.

Answer 64

1. ) taste 2. ) touch 3. ) smell 4. ) sight 5. ) hearing

Question 65

Observation or Inference A bird is sitting on its nest.

Answer 65

observation

Question 66

Observation or Inference There was one book on each desk.

Answer 66

Observation

Question 67

Observation or Inference? The plants leaves are brown due to lack of water.

Answer 67

inference

Question 68

Keep _______ on bottles & containers when not in use.

Answer 68

lids

Question 69

Models can \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_, money, and \_\_\_\_\_\_\_\_\_\_.

Answer 69

1. ) save time 2. ) lives

Question 70

Never _________ directly into a __________ when mixing or heating chemicals.

Answer 70

1. ) look 2. ) test tube

Question 71

What is it that you are trying to find an answer to?

Answer 71

problem

Question 72

What do you do before and after each experiment?

Answer 72

wash your hands

Question 73

If in doubt about directions, \_\_\_\_\_\_\_\_\_\_\_\_\_\_.

Answer 73

ask your teacher

Question 74

What do you use to analyze the data?

Answer 74

Information you gained from experiment, including observations & measurements

Question 75

the factor that may change in response to the independent variable

Answer 75

dependent variable