Scientific Method Review Are you ready for your test?

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Scientific Method Review

Are you ready for your test?

The step of the Scientific Method that is in a question format.

Answer: PROBLEM

A testable statement in the scientific method

Answer: HYPOTHESIS

The part of the scientific method that allows us to test the hypothesis.

Answer: EXPERIMENT

The group that the experiment is performed on.

Answer: EXPERIMENTAL GROUP

The group that the results are compared to and it receives no experimental treatment.

Answer: CONTROL GROUP

The variable changed by the scientist and it is what the scientist is testing in the experiment.

Answer: INDEPENDENT VARIABLE

Data used to make graphs, gained from counts or measurements and it is numerical.

Answer: QUANTITATIVE DATA

The variable that is measured or observed throughout the experiment.

Answer: DEPENDENT VARIABLE

The axis where the independent variable is placed.

Answer: X-AXIS

A concise statement above the graph that tells the reader what the graph is about.

Answer: TITLE

Should include all data points and climb in intervals such as multiples of 2, 5, 10, etc.

Answer: SCALE

The axis where the dependent variable is located.

Answer: Y-AXIS

A short description concerning the graph’s data.

Answer: LEGEND

The type of graph that best shows the relationship between two variables. The data is continuous.

Answer: LINE GRAPH

Type of graph that has labels rather than numbers on the x-axis. The data is not continuous.

Answer: BAR GRAPH

A graphs that shows the data as a percentage in relation to the total data.

Answer: CIRCLE GRAPH

The part of a lab report contains the title of the experiment, your name, all of your lab partner’s names, experiment dates, class and hour.

Answer: TITLE/COVER PAGE

This section of the lab report contains the independent variable, dependent variable, and controls.

Answer: EXPERIMENTAL DESIGN

The section of the lab report explains any mistakes you made during the lab.

Answer: SOURCES OF ERROR

This section of the lab report tells what happened in the lab and why.

Answer: ANALYSIS

The section of the lab report where you reject or accept your hypothesis.

Answer: CONCLUSION

Mr. Orange, Mr. Blue, and Mrs. Purple all had weeds growing in their yards. Mr. Orange does nothing about his weeds. Mr. Blue applies weed killer X. Mrs. Purple applies weed killer T. What is a good problem for this scenario?

Answer: WHICH WEED KILLER IS GOING TO KILL THE MOST WEEDS?

Based on the weeds scenario, what is the hypothesis?

Answer: IF BRAND X WEED KILLER IS APPLIED TO A LAWN THEN IT WILL HAVE LESS WEEDS THAN A LAWN TREATED WITH BRAND T WEED KILLER

What is the control group in the weed killer experiment?

Answer: MR. ORANGE’S LAWN WITH NOTHING APPLIED

What is the experimental group in the weed killer experiment?

Answer: MR. BLUE’S LAWN & MRS. PURPLE’S LAWN BECAUSE THEY BOTH HAD SOME SORT OF WEED KILLER

What is the independent variable in the weed killer experiment?

Answer: THE WEED KILLER BRAND X OR T

What is the dependent variable in the weed killer experiment?

Answer: THE AMOUNT OF WEED KILLER IN EACH LAWN

Is the weed killer experiment done in a controlled environment?

Answer: NO, BECAUSE IT IS OUTSIDE, NOT IN A LAB

The common steps that biologists and other scientists use to gather information and answer questions.

Answer: SCIENTIFIC METHOD

Jack and Jill collected the following data: green, strong, dark, and many ears of corn. What kind of data is this?

Answer: QUALITATIVE

Q31 Name the Safety

Symbol

What is the correct format for a hypothesis?

If, then (and a prediction)

If students prefer French fries to tater tots then they will eat 10% more each lunch. What is the independent variable?

Type of potato

If students prefer French fries to tater tots then they will eat 10% more each lunch.

What is the dependant variable?

Amount consumed

What units does a triple beam balance use to measure mass?

What units is temperature measured in for science?

Degrees Celsius

What is unit of measurement for volume?

What are the best units to measure diameter of a penny?

What is the purpose of a graduated cylinder?

Measure/transfer the volume of a liquid

What is this a picture of?

Erlenmeyer

What is this a picture of?

beaker

What does this measure?

What were the three safety precautions for the blue lab?

Eye safety (goggles) Clothing protection (aprons) Chemical (careful of spills)

In the Blue lab why did the liquid change to blue only when half the flask was full?

Air/oxygen

What were you trying to determine during the blue lab? (What was the problem?)

Are liquids A and B the same?

While conducting the blue lab why did you perform three trials for each flask in experiment 3?

More valid/reliable

Was the liquid in flask A the same as the liquid in flask B?

Is it okay to taste a sample of table sugar used in a lab experiment?

When is it okay to work alone in the lab?

Where do you put broken glassware?

In the properly labeled disposal designated for broken glass (Bob in Mrs. Gaines’ class)

What should you do in the event of a chemical spill?

1st tell teacher Only if instructed, clean it up Wash your hands

What should you do before the lab begins?

Read instructions/lab/procedure Listen for special instructions Wash your hands Get equipment

What should you do when the lab is over?

Clean up Wash hands

Why is horse-play unacceptable in the lab?

Dangerous/unsafe for self and other students (someone could get hurt)

How should you pick up a beaker of boiling liquid?

Hot pads/tongs

Al Kane was mixing two chemicals in a beaker. He noticed that a greenish-yellow gas was bubbling out of the liquids. He had been told to make all observations that he could, so he held the beaker close to his nose and took a good whiff.

Sally Forth was told to make observations about some liquids. One of the liquids was supposed to be a base and therefore have a slippery feel. So she carefully dipped the end of her little finger into each liquid and rubbed her thumb on the wet skin.

Messy Slob was usually the slowest person in the lab. She did everything so carefully that she seldom finished all of the procedure before it was time to clean up. On this particular day, Messy was so worried about not being late to her next class that even though she knocked over a beaker of liquid, she just left it and raced out of the lab.

Notta Clue and his partner Spacey Cadet were going to do a lab in their science class. As usual, they were late to class and all of the other students were already in the lab. “What are we supposed to be doin’ ?” asked Notta. “I don’t know,” replied Spacey. “Let’s just do what everyone else is doing!”

“We took too much of these chemicals,” said Hal Ogen to his partner Nob Legas. “Take the beakers up to the counter and pour the powders back into the bottles.”

Bob really liked Sally and was really pleased she was in his class. “I’ll have a chance to talk to her and ask her out,” he thought. “But she won’t even talk to me if I wear these dorky safety glasses and apron.”

ANY QUESTIONS???

GOOD LUCKSTUDY HARD!!

Scientific Method Review Are you ready for your test?

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