Show:
Science Questions
True or False?
Scientific Method
Scientific Method Continued
Controls and Flaws
100
Do the students at Northwestern like Skittles or M & M's better?
Not a good question-it is an opinion
100
You should only test your experiments 5 times in order to have a valid lab.
False, you should test experiments thousands of times to get a valid conclusion.
100
Tony noticed that his mom's resolve stain stick seemed to take out stains on his jeans, but wondered how it would do on other materials like T-shirts, sweatpants, etc. What should he do next?
Gather background information.
100
Maria tested the Penny Drop Lab 10 times (5 on the heads side and 5 on the tails side). On the heads side she got 15, 10, 25, 14, and 9. On the tails side she got 20, 22, 24, 16, 18. What can she conclude?
The tails side held more drops of water.
100
If we were going to test to see which would dissolve a red Life Saver the quickest (between soda, tap water, and juice), what is a possible flaw?
Temperature in the drinks, containers we put them in, the amount of each liquid.
200
Will the red Life Saver dissolve first?
Not a good question-Yes or no
200
If my data doesn't match my hypothesis (prediction), I should throw out my data and start over.
False, you should never throw out your data because that is the result you got!
200
Treyvon loves Monster and knows that it is supposed to give you energy. He loves all of the flavors and each time he drinks one, he always feels energized. He would like to see which flavor of Monster gives him energy for the longest period of time. What should he do next?
Make a hypothesis, then test it.
200
Give an example of a flaw in the airplane experiment.
Different people throwing the planes, didn't start at the same spot, people measured differently, open and closed windows, different locations
200
What was a control in our airplane experiment?
type of paper, style of airplane, all 8th graders flying the planes, all flown at Northwestern.
300
Which Life Saver will dissolve the slowest?
Yes because you can test it.
300
You should make your hypothesis before you gather background information.
False, always gather background information so that you can use that to make your hypothesis.
300
Elizabeth needs pencils and doesn't know which brand to buy. What is the next step in the scientific method?
Gather information
300
How could you make the airplane experiment valid?
One person throw the plane, one person measure the distance, everyone in the class throw in the same location at the same time.
300
We want to see how many paperclips would sink a boat made of foil. What is a possible control?
Same type of foil, same brand of paper clips, same amount of water
400
Which side of a quarter will hold more drops of water?
Yes, you can test it and collect data.
400
Testing an experiment thousands of times will give you pretty valid test results.
True, the more times you test something, the more believable your data is.
400
Kaycee has decided that he is going to wear the color red all week long. His friends saying that he must love this color because that is all he wears. This is an example of what?
An inference
400
Joe has decided he would like to see which brand of football will go the farthest. He has bought three different brands from Meijer. What is his next step?
Make a hypothesis, then test it
400
We want to see how many paperclips would sink a boat made out of foil. What is a possible flaw?
different shapes of boats, different size of paperclips, different amount of water
500
How many drops of soda will the heads side of a penny hold compared to the heads side of a quarter?
Yes, you can test it and collect data.
500
It is important that you only have one variable in an experiment.
True, that way your results are more valid because you have less flaws!
500
Mr. Miles is talking to his class across the hall. This is an example of what?
An observation
500
In class, we tested Life Savers to see which color would dissolve first. What was a control in this experiment?
The candy all came from the same bag, all of the students testing the candy were 8th graders, everyone was sitting down.
500
Why is the Life Saver Lab, when tested in the beakers, more valid than when we tested the candy in our mouths?
Because we controlled how much water was in each beaker, where the water came from, and they didn't move or get broken.