Scientific Measurements
Scientific Methods
Parts of Experiments
Scientific Methods
Scientific Method Vocabulary
100

This tool is used to measure the mass of an object.

A triple beam balance.

100
A scientific investigation typically begins with this.
A problem or question.
100

Brittany designs an experiment in which she places one carnation flower into a different colored water. She observes the flowers to see if they will change color to match the water. She places one flower in blue water, one flower in clear water, one flower in orange water, and one flower in green water. What is her control group?

The flower in clear water.

100

Use mm, cm, m, km, ml, l, g, and kg in what

What is measurement

100

The step-by-step instructions for how to conduct the experiment

What is procedures

200
Using a graduated cylinder, the volume of an irregularly shaped object can be measured using this method.
The water displacement method.
200
In this step of a scientific investigation, the experimenter looks for patterns or trends in the results of their experiment.
Analyzing data.
200

Thanh wants to know which candle type will burn the fastest. She tests three different types of candles and lights them. She lets the Bath and Body Works candle burn for 20 minutes, the Yankee Candle burns for 40 minutes, and the Colonial Candle burns for 60 minutes. After her experiment, she observes that the Colonial Candle burnt the most wax. What is wrong with Thanh's experiment?

She has two independent variables. She should keep the burn time constant for all three candle types.

200

Should experiments be repeated over and over and over to see if the results are the same each time?

What is yes to ensure that results are consistent and reliable

200

A factor in an experiment that changes as a result of the manipulation of the independent variable. It is the data you collect

What is dependent Variable

300
This tool is used to measure the length of an object.
A ruler or meter stick.
300
True or false: Scientific investigations must always proceed in a strict sequence of steps.
False.
300
Hannah designs an experiment in which she tests different sized wheels on her skateboard. She normally uses 52 mm wheels, but wants to see if bigger wheels will increase her speed. She uses the same skateboard and tests 52 mm wheels, 56 mm wheels, and 60 mm wheels. Traveling over the same distance, she finds that her speed is fastest in her normal 52 mm wheels. What is the dependent variable in her experiment?
Her speed on the skateboard
300

What is inference

What is a conclusion drawn from evidence or reasoning rather than from explicit statements

300

Things kept the exact same in an experiment to make sure the experiment is fair

What is constant

400

12.5 cm equate to how many millimeters

What is 125 mm

400

What is the difference between a hypothesis and an inference?

Both are educated guesses or explanations, but a hypothesis is testable in a controlled experiment.

400
The variable in a controlled experiment that the experimenter changes.
What is an independent variable?
400

What is a conclusion

A summary of the results of an experiment, stating whether the hypothesis was supported or not.

400

A statement about or comment about what you see, feel, taste, hear, or smell.

What is observation

500
The metric system is based on this number.
10
500

In this step of an experiment, an answer to the original problem is stated, based on the data collected from the experiment.

The conclusion.

500
Factors in controlled experiments that remain the same for all test groups.
Constants.
500

What is scientific law?

A statement based on repeated experimental observations that describes some aspects of the universe.

500

A testable statement about what you think will happen in an experiment. A prediction about the relationship between variables (written in "if ...then...") form

What is hypothesis

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