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Variables
Graphing
Scientific Method
Controls
IV and DV
100
The variable being changed or manipulated in an experiment.
What is the Independent Variable?
100
This belongs on the top of every graph you make.
What is a TITLE?
100
The step of an experiment at the beginning of the scientific method
What is the problem/question?
100
You are testing if different amount of light affects plant growth. What needs to be the same between all the plants for experiment to be valid?
What is soil, fertilizer, type of plants, amount of water, time of test
100
Is the size of fish affected by the depth of the ocean they live? What would be the IV?
What is depth of the ocean?
200
Is the thing that will change, that you intend to measure or record.
What is the dependent variable?
200
What is the name of the horizontal (side to side) axis?
What is X-AXIS?
200
An testable idea or prediction for what might happen in an experiment.
What is a HYPOTHESIS?
200
One tank of gold fish is fed the normal amount of food once a day. A second tank is fed twice a day. A third tank is fed four times a day during a six week study. The fish’s weight is recorded daily. What are the controls?
What is 3 tanks of goldfish, 6 week study, weight recorded daily.
200
Is plant growth faster when plants are exposed to different amounts of light? What would be the DV?
What is plant growth?
300
The variable that you observe or measure during an experiment.
What is a Dependent Variable?
300
True or False: You don't need to label the bottom and side of a graph.
What is False?
300
The step of the scientific method where you make graphs, look for patterns, and think about what happened.
What is the ANALYSIS?
300
You decide you want to compare which music makes you fall asleep faster. Week 1 you listen to rock music. Week 2 you listen to country music. Week 3 you listen to classical music. Week 4 you listen to no music. What are some possible controls?
What time listening to music, amount of sleep the night before, method of timing, etc.?
300
Does spending time with a pet animal decreases the amount of stress right before taking a test? What is the dependent variable??
What is the amount of stress?
400
Something that stays the same to keep an experiment fair.
What is a constant/control?
400
Why are graphs helpful in science?
Answers Vary-example: Graphs and charts are used to make information easier to visualize. Graphs and charts can show trends, cycles, and patterns.
400
Numbers, observations, or information you collect in an experiment.
What is DATA?
400
Children who entered kindergarten at age 5 were compared with children who entered kindergarten at age 6 on measures of academic achievement taken at grade 5. Results indicate that children who entered kindergarten at age 6 scored higher on standardized tests than those kids that entered at age 5.What are some possible controls for this experiment?
Answers vary-examples: type of education received, parental support, time spent studying, etc.
400
Students at a University were split into two groups and each received a different text for a philosophy course. One group received a traditional text book, while the other received an interactive textbook on a computer. After the course, the final exam grades between the two groups of students was compared. What is the independent variable?
What is the type of textbook?
500
The number of independent variables that you can have in an experiment.
What is one?
500
If you have a data table with two columns, the left column almost always goes on this axis of the graph.
What is the X-AXIS (Bottom of graph).
500
Data that contains numbers is called ____________ data.
What is quantitative?
500
Three redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. One tree is left outside in normal conditions. The heights of the trees are measured once a week. What are some possible control variables?
Answers vary. Examples-amount of water, amount of sunlight, fertilizer, size of tree to begin the experiment, etc.
500
A researcher wants to investigate the types of behavior that develop in children that have recess at school and those who don't. What is the DV?
What is type of behavior in children?