Quiz about 1.1 Practice of Science

Question 1

Which of the following best describes a hypothesis in a scientific investigation?

Accepted Answer

A testable explanation for an observation

Answer

A proven fact

Answer

A list of materials

Answer

A final conclusion

Question 2

What is the main purpose of using repeated trials in a scientific experiment?

Accepted Answer

To increase the reliability of the results

Answer

To make the experiment more interesting

Answer

To use more materials

Answer

To finish the experiment faster

Question 3

What is the value of a hypothesis that is not supported by the data?

Accepted Answer

It can lead to further investigations

Answer

It is useless

Answer

It must be ignored

Answer

It is always wrong

Question 4

When planning a scientific investigation, what is the first step?

Accepted Answer

Defining the problem

Answer

Collecting data

Answer

Analyzing results

Answer

Drawing conclusions

Question 5

Which of the following best describes replication in a scientific study?

Accepted Answer

Repeating the experiment by different scientists

Answer

Using the same materials for every trial

Answer

Changing the hypothesis each time

Answer

Only doing the experiment once

Question 6

Which of the following is NOT a characteristic of scientific investigations?

Accepted Answer

Ignoring data that does not fit

Answer

Use of logical reasoning

Answer

Collection of empirical evidence

Answer

Application of imagination

Question 7

A student collects data and organizes it into a table. What should the student do next to interpret the data?

Accepted Answer

Analyze the information

Answer

Make a prediction

Answer

Change the hypothesis

Answer

Start a new experiment

Question 8

Given a set of data from repeated trials, how can you determine if your results are reliable?

Accepted Answer

If the results are the same each time

Answer

If the results are different each time

Answer

If the results are not recorded

Answer

If the results are only estimated

Question 9

A student wants to test how sunlight affects plant growth. The student has 3 of the same plants but they are given different amounts of sunlight. The growth of the plant is tracked for 2 weeks. What is the test (independent) variable of this experiment?

Accepted Answer

Amount of sunlight

Answer

Amount of water

Answer

Type of soil

Answer

Type of plant

Question 10

A student observes that a chemical reaction produces gas bubbles. Which step should the student take to form a scientific explanation?

Accepted Answer

Collect more evidence and use logical reasoning

Answer

Guess what happened

Answer

Ignore the observation

Answer

Change the experiment

Question 11

Fill in the blank:

Test(_____________) variable and Outcome(__________) variable.

Accepted Answer

independent, dependent

Answer

control, independent

Answer

independent, control

Answer

dependent, independent

Question 12

A fisherman was trying to figure out the best bait that he could use in order to catch more fish. He knew there was a correlation between the fish bait and the amount of fish that he could catch on a fishing trip. What is the Test (independent) variable in this experiment?

Accepted Answer

Fish bait

Answer

Fish

Answer

Fisherman

Answer

Fishing trip

Question 13

Juanita wanted to determine the effect the amount of times a betta fish was fed would affect its weight. She had 3 betta fishes all in separate tanks. Betta 1 received food 3 times a day , Betta 2 received food 2 times a day and Betta 3 only once. What would be the Outcome( dependent variable) of Juanitas experiment?

Accepted Answer

The weight of the fish

Answer

The Betta fish

Answer

The fish food

Answer

The times the fish were fed

Question 14

In the chart , a music store listed the number of CDs sold each month for 6 months. Which graph correctly represents the information in the chart?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 15

The graph shows what happened when a candle was burned in different jars. The results of this experiment show that the bigger the jar, the

Accepted Answer

longer the candle burned

Answer

faster the candle melted

Answer

brighter the candle's flame

Answer

higher the candle's flame

Question 16

Grace wanted to see if her plants would grow faster if they were placed under an artificial growing lamp instead of sunlight. She placed half of her plants in a room with two windows and an artificial growing lamp. She placed the other half of the plants in a room with six windows. What is one major mistake Grace made when setting up this experiment?

Accepted Answer

She used two different kinds of plants

Answer

The plants receiving light from the artificial lamp were placed in different sized containers.

Answer

All of the plants received equal amounts of fertilizer.

Answer

All of the plants were watered the same amount.

Question 17

Which of the following investigations is described below?

"Kylie wants to study the effect that playing music has on her tulips (flowers) growth. She sets up four groups of tulips. She plays rock for the first group, rap for the second, classical for the third, and no music for the fourth group. She measures how much her tulips grow over 10 weeks. "

Accepted Answer

Experimental Investigation

Answer

Observational Investigation

Answer

Comparative Investigation

Question 18

On a graph, which axis shows the independent variable?

Accepted Answer

x-axis

Answer

y-axis

Answer

neither

Answer

it changes

Question 19

On a graph, which axis shows the dependent variable?

Accepted Answer

y-axis

Answer

x-axis

Answer

neither

Answer

it changes

Question 20

Question 20.

Accepted Answer

The dependent variable is total cost

Answer

The dependent variable is weight

Answer

The independent variable is total cost

Answer

The independent variable is cost of a package

1.1 Practice of Science

23 questions

Which of the following best describes a hypothesis in a scientific investigation?

What is the main purpose of using repeated trials in a scientific experiment?

What is the value of a hypothesis that is not supported by the data?

Which of the following is an example of empirical evidence?

When planning a scientific investigation, what is the first step?

Which of the following best describes replication in a scientific study?

Which of the following is NOT a characteristic of scientific investigations?

A student collects data and organizes it into a table. What should the student do next to interpret the data?

Given a set of data from repeated trials, how can you determine if your results are reliable?

A student wants to test how sunlight affects plant growth. The student has 3 of the same plants but they are given different amounts of sunlight. The growth of the plant is tracked for 2 weeks. What is the test (independent) variable of this experiment?

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