Read Dat Data!
Variables
Experimental Know-How
Vocabulary
Science Smart
100
This data table supports the idea that this group grew more.
What is Container B/Water plus fertilizer?
100
What is required for an effective experiment?
What is one tested variable and all of the other variables being kept the same?
100
Taylor is testing which type of wheels will make a model car travel down a ramp fastest. After two trials, Taylor can't really detect a pattern. This would be the best next step?
What is repeat the experiment?
100
This is what starts off many scientific investigations.
What is a question?
100
True of False-Every experiment must have a control group?
What is false?
200
True or False? This chart shows that more force made the model car travel farther.
What is true?
200
Edwin wants to see if being in a warmer environment makes his goldfish more active. He keeps one tank of fish in an air conditioned room, and the other is kept on his un-air conditioned porch. Both tanks of fish have the same food, water type, etc. Each week, Edwin measures the length of the goldfish in each tank. This is his mistake.
What is "he should be measuring activity levels-not length"?
200
If your findings in an experiment do not support your hypothesis, should you check your procedure and repeat OR make up new results that do fit the hypothesis OR do a totally different experiment.
What is check your procedure and repeat the experiment?
200
This is something that can be changed or controlled in an experiment.
What is a variable?
200
Jerome is creating a bar graph showing the average weight for each of three types of fruit. These would need to be the axis labels for his graph.
What is type of fruit and weight?
300
This is the average or mean distance traveled by Block #4.
What is 12 cm?
300
Sally puts one group of plants in a room with music and waters them twice a day. A second group is not exposed to music and is watered only every other day. The second group grows taller. Can a conclusion be reached?
What is no conclusion can be reached because more than one variable is changed.
300
True or False-It is important that scientists keep careful records of their procedures for an experiment so that others can repeat the experiment in the same way.
What is true?
300
This is the group that is left alone or kept normal for comparison.
What is the control group?
300
Callie is creating a bar graph that shows the average amount of water each of her five pets drinks daily. These would need to be the axis labels for her graph.
What are pet names and amount of water?
400
Between these two years, you find the biggest change.
What is 2000 and 2001?
400
This is the tested variable that is made different?
What is the type of liquid?
400
Ryan is testing which type of potting soil will make a marigold produce more blooms. He plants one group of marigolds in a plastic pot filled with Potting Soil A. He plants a second group in a glass container filled with Potting Soil B. This is the problem with Ryan's experiment.
What is he uses two different types of containers, and the only difference should be the type of potting soil?
400
These are the quantities and measurements gathered during an experiment. They're often displayed on a chart, graph, or table.
What are data?
400
Jason takes three different types of cups and tests to see which one can keep cocoa hot the longest. This is the tested variable.
What is the type of cup?
500
This soil temperature led to the greatest percentage of germinated pumpkin seeds.
What is 28 degrees Celsius?
500
This is the tested variable that is being changed in this experiment.
What is the amount of sunlight?
500
Yasmin followed these steps of an investigation:
• Collect five objects made of different types of metal.
• Place them on a large laboratory table.
• Touch each metal object with a magnet and lift slowly.
• Record observations.
This is what Yasmin is testing.
Which metals are attracted to a magnet?
500
This is what is found when you add up all your trials and divide by how many trials were conducted.
What is the average/mean?
500
Jason takes three different types of cups and tests to see which one can keep cocoa hot the longest. How can Jason be more sure of his results?
What is to repeat the experiment?