Glencoe Science: Level Red

McGraw-Hill

Chapter 1 The Nature of Science - all with Video Answers

Educators

Section 1

Chpater Review

00:52

Problem 1

Explain the relationship between the words in the following sets.
hypothesis—scientific theory

Tate Hilken

Numerade Educator

01:15

Problem 2

Explain the relationship between the words in the following sets.
constant—variable

Bryan Lynn

Numerade Educator

01:15

Problem 3

Explain the relationship between the words in the following sets.
science—technology

Bryan Lynn

Numerade Educator

01:15

Problem 4

Explain the relationship between the words in the following sets.
science—system

Bryan Lynn

Numerade Educator

Problem 5

Explain the relationship between the words in the following sets.
Earth science—physical science

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Problem 6

Explain the relationship between the words in the following sets.
critical thinking—infer

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Problem 7

Explain the relationship between the words in the following sets.
scientific law—observation

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01:15

Problem 8

Explain the relationship between the words in the following sets.
model—system

Bryan Lynn

Numerade Educator

01:15

Problem 9

Explain the relationship between the words in the following sets.
controlled experiment—variable

Bryan Lynn

Numerade Educator

07:11

Problem 10

Explain the relationship between the words in the following sets.
scientific theory—scientific law

Dr. Satish Ingale

Numerade Educator

02:26

Problem 11

What does it mean to make an inference?
A) make observations
B) draw a conclusion
C) replace
D) test

Prabhakar Kumar

Numerade Educator

03:36

Problem 12

Which of the following CANNOT protect you from splashing acid?
A) goggles
C) fire extinguisher
B) apron
D) gloves

Jennifer Look

Numerade Educator

00:38

If the results from your investigation do not support your hypothesis, what should you do?
A) Should not do anything.
B) Repeat the investigation until it agrees with the hypothesis.
C) Modify your hypothesis.
D) Change your data to fit your hypothesis.

Ricajoy Montero

Numerade Educator

01:07

Problem 14

Which of the following is NOT an example of a scientific hypothesis?
A) Earthquakes happen because of stresses along continental plates.
B) Some animals can detect ultrasound frequencies caused by earthquakes.
C) Paintings are prettier than sculptures.
D) Lava takes different forms depending on how it cools.

Emily Terlap

Numerade Educator

01:20

Problem 15

Using a computer to make a threedimensional picture of a building is a type of which of the following?
A) model
C) constant
B) hypothesis
D) variable

Ethan Fuhrman

Numerade Educator

01:47

Problem 16

Which of the following increases the reliability of a scientific explanation?
A) vague statements
B) notes taken after an investigation
C) repeatable data
D) several likely explanations

Prashant Bana

Numerade Educator

00:23

Problem 17

Which is an example of technology?
A) a squirt bottle
C) a cat
B) a poem
D) physical science

Rajpal Sian

Numerade Educator

05:21

Problem 18

What explains something that takes place in the natural world?
A) scientific law
C) scientific theory
B) technology
D) experiments

Norma Kimmel

Numerade Educator

01:20

Problem 19

An airplane model is an example of what type of model?
A) physical
C) idea
B) computer
D) mental

Ethan Fuhrman

Numerade Educator

01:14

Problem 20

When scientists study how well new medicines work, one group of patients receives the medicine while a second group does not. Why?

Aisha Abdullah

Numerade Educator

00:47

Problem 21

How is using a rock hammer an example of technology?

Lizabeth Tumminello

Numerade Educator

01:24

Problem 22

How are scientific theories and scientific laws similar? How are they different?

Nicole Smina

Numerade Educator

03:55

Problem 23

Mohs hardness scale measures how easily an object can be scratched. The higher the number, the harder the material is. Use the table above to identify which material is the hardest and which is the softest.

Shazia Naz

Numerade Educator

00:26

Problem 24

How does a scientific law differ from a state law? Give some examples of both types of laws.

David Collins

Numerade Educator

00:24

Problem 25

Why it is important to record and measure data accurately during an experiment?

Ricajoy Montero

Numerade Educator

Problem 26

Predict the quickest way to get to school in the morning. List some ways you could test your prediction.

Check back soon!

02:45

Problem 27

Using a basketball and a tennis ball, make a hypothesis about the number of times each ball will bounce when it hits the ground. Drop each ball from shoulder height five times, recording the number of bounces in a table. Which ball bounced more? Make a hypothesis to explain why.

Tara Appleyard

Numerade Educator

03:52

Problem 28

Pour some water in a small dish and sprinkle some pepper on top. Notice how the pepper floats on the water. Now add a few drops of liquid soap to the water. Write down your observations as you watch what happens to the pepper.

Sri Datta Vikas Buchemmavari

Numerade Educator

01:49

Problem 29

The map above shows the distance between two points. The scale shows that $1 \mathrm{~cm}$ is approximately $1.05 \mathrm{~km}$. What is the approximate distance between Point $\mathrm{A}$ and Point B?

Ajay Singhal

Numerade Educator

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Problem 12

Problem 13

Problem 14

Problem 15

Problem 16

Problem 17

Problem 18

Problem 19

Problem 20

Problem 21

Problem 22

Problem 23

Problem 24

Problem 25

Problem 26

Problem 27

Problem 28

Problem 29