Rigoberto writes down his hypothesis that more salt will dissolve in cold water than in warm water. He adds salt to different temperatures of water and records his observations including the amount of undissolved salt. He finds that there is more salt dissolved in warm water than cold water. What should Rigoberto do next to make sure that his conclusion is valid?

repeat his investigation to see if his results are the same

do another investigation with sugar

repeat his investigation using a different liquid than water

change his results to match his original hypothesis

Why are repeated trials important in a scientific investigation?

They make sure that the results are valid.

They determine the outcome of an experiment.

Harry decided to study insects. He marked off an area in his yard with string. Each day he observed the insects within the area with a hand lens. He recorded the kinds of insects he saw and the number of each kind. How could Harry best communicate to his classmates the kinds and numbers of insects in his study area?

Take a picture of some of the insects

Write a story about his favorite insect.

Tell someone about the insects he saw.

Which of the following could scientists do to determine whether the alligator population in the Everglades is increasing or decreasing?

observe and record the number of alligators they see in the Everglades for several months and compare it to last year’s data

watch for alligators for a week as they travel around the Everglades and compare it to last year’s data

look in the newspaper for articles about alligator attacks

estimate the answer from the number of alligators they counted last year

Which question would be best to answer using a scientific investigation?

Does temperature affect the amount of rain?

Why are people afraid during thunderstorms?

Are some clouds prettier than others?

A scientist says that she has made an important discovery about sound waves. What needs to happen for most other scientists to accept her results?

Other scientists need to be able to get the same results.

The scientist has to explain her results to other scientists.

Many scientists need to review the results.

The scientist needs to publish her results in a journals.

Jaylynn says a baseball and a basketball will fall at the same speed. Her friend disagrees. Which of these is the best way for them to find out?

drop both balls from a high place and compare how fast they fall

ask an adult which one is right

explain their reasons to each other

ask twenty different people on the playgroup what they think

Jonathan and Renier dropped a rubber ball from the same height onto six different surfaces. They measured the height of each bounce and recorded their data. The graph shows their data. Based on the data, which of the following is the best conclusion?

A rubber ball bounces higher on harder surfaces.

All balls bounce higher indoors than they do outdoors.

The surface has no affect on the height of the bounce.

A rubber ball does not bounce as high as a super ball.

Nature of Science

Authored by Mayra Torres

Science

5th Grade

NGSS covered

Used 119+ times

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20 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following might lead to the changing of a scientific idea?

A scientist describes an experiment to a group of students

A scientist gets the same results when repeating an experiment a second time

a scientist gets results that do not fit a current idea and other scientists find his results are valid

a scientist has to redo her experiment because she finds the correct procedure was not followed

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What skill are you using when you see a red spot on a desk.

observation

posing a question

classifying

hypothesis

When using the scientific method, the problem is written as a(n)

explanation

statement

question

essay

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A testable idea or explanation that leads to a scientific investigation is called (can be stated as an if/ then statement)

conclusion

experiment

hypothesis

The variable that stays the same

independent

dependent

control group

constant

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

I see that Mrs. McDermott is holding a coffee cup, I assume that there is coffee in the coffee cup. By making the assumption that there is coffee in the mug, I have made a(n)

observation

inference

classification

experiment

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sometimes scientist imitate something that is too big or too small to work with by creating a(n)

experiment

data station

model

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Nature of Science

Which of the following might lead to the changing of a scientific idea?

What skill are you using when you see a red spot on a desk.

When using the scientific method, the problem is written as a(n)

A testable idea or explanation that leads to a scientific investigation is called (can be stated as an if/ then statement)

The variable that stays the same

I see that Mrs. McDermott is holding a coffee cup, I assume that there is coffee in the coffee cup. By making the assumption that there is coffee in the mug, I have made a(n)

Sometimes scientist imitate something that is too big or too small to work with by creating a(n)

Justin blows his nose, but mucus seems to leak through the tissue. He decides to test which tissue holds up the best while sneezing. What is the independent (the variable that is changed) variable?

A ___________________ is a set of steps that tell us how to complete an investigation.

Using one or more of your senses to gather information is called

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