Scientific... or not?
Make Predictions
That's not FAIR! Or is it?
Graphs!
100
Is the following question scientific or not: Is my mom cooler than your mom?
Non-scientific- It's an opinion that cannot be tested using an experiment.
100
What is a synonym for hypothesis?
Prediction Educated Guess
100
In a fair test, all but ______ variable(s) is/are controlled.
ONE
100
Which information always goes along the bottom of the graph? a. The stuff you already knew before you did the experiment (length of the pendulum, brand of ketchup, amount of gravity in various locations) b. The stuff you measured during the experiment (number of cycles, how long it took the ketchup to run down the plate, distance the plane flew)
The stuff you already knew (length of the pendulum, brand of ketchup, amount of gravity in various locations) always goes on the bottom of the graph.
200
Is the following question scientific or not: Does instant hand sanitizer kill more bacteria than soap and water?
Scientific- You could design an experiment to test it.
200
Fill in the blanks to form a hypothesis about how the length of an animal's legs affect its speed? I think that as an animals legs get longer, its speed will ____________.
I think as an animal's legs get longer, its speed will increase.
200
Ms. Barstow raced Charlotte for 100 meters. They both recorded their results. Ms. Barstow did 2 trials. She ran it in 20 seconds the first time and 30 seconds the second time. Her median time was 25 seconds. Charlotte did 5 trials. She ran it in 10 seconds the first time, then 13 seconds, 9 seconds, 12 seconds, and 13 seconds. Her median time was 10 seconds. Which median is more reliable?
Charlotte's because she did more trials than Ms. Barstow.
200
If you conducted an experiment to test how different watt light bulbs affected the amount of heat put off, what would go along the bottom of the graph? What would go along the side?
The wattage would go along the bottom because that's what we already know before we conduct the experiment. The amount of heat would go along the side because that's the info we learn from the experiment.
300
Is the following question scientific or not: Is Charlotte the best puppy in the world?
Non-scientific! It's an opinion that cannot be tested using an experiment.
300
Fill in the blanks to form a hypothesis about how the amount of candy you eat affects how many cavities you have. I think that if you eat more candy, you will have _________ cavities.
more, less, the same number of
300
List two variables that would need to be controlled if you were going to test how the amount of water affects how quickly tomato plants grow?
Same type of tomato plants Same number of seeds Same soil Same fertilizer Same amount of sunlight Same weather (inside)
300
What's the most important thing to remember when labeling the scales on both axises on a graph?
You must count by an even increment! (0,1,2,3,4) (0,2,4,6,8) (0,.5,1,1.5,2) (0,10,20,30,40)
400
Is the following question scientific or not: Does a sunflower require more light than a moonflower to grow?
Scientific- You could design an experiment to test it.
400
Make a hypothesis about how the darkness of a cloud affects the amount of rainfall.
I think that the darker the cloud is, the more rainfall.
400
What are two variables you would need to control if you were testing how the type of food affects how often a dog needs to go poop.
Amount of food Dog Feeding time Water intake Sleep Exercise
500
Is the following question scientific or not: Does a 100 watt light bulb give off more heat than a 40 watt light bulb?
Scientific- You could design an experiment to test it.
500
Make a hypothesis about how hand size affects the distance a baseball is thrown.
I think that as hand size increases, the baseball will be thrown farther.
500
List two variables that we had to control in our Case of the Ketchup Caper experiment.
Amount of Ketchup Plate Style Time propped up Angle of propping
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