Vocab
The variables that remain the same
Constants
Explain why we only change one variable
So we know what specific change caused the results!
How many variables do we change?
What was our IV and DV?
How many hours of sunlight a plant gets and how many inches it grows (height)
What type of animal lives in water and on land?
Amphibians
The variable that is changed
Independent Variable
Explain why we do multiple trials
For accuracy! Mistakes in one trial affect final results less!
At least how many trials should we do?
Three
What was our hypothesis?
If the plant receives more sunlight, then it will grow taller.
What are the three states of matter?
The variable that is measured
Dependent Variable
Explain how to find the average for each level of IV
Add up all the data values for each trial and divide by the number of trials!
What are the two parts of the procedure?
Materials list and steps to complete
Name three constants for our experiment
Type of plant, type of soil, amount of water, location, number of seeds, when measured, etc.
What type of animal is a Koala?
A marsupial
The level of IV that should have no effect on the DV
Negative Control
Explain why we use controls
Acts as a baseline when analyzing data and helps show problems in procedure!
What is the format for asking a question?
How does the IV affect the DV?
Did we have a positive or negative control? What was it?
Negative Control: plants given no sunlight
What is the hardest material?
Diamonds
The level of IV that has a known effect on the DV
Positive Control
Explain the Placebo effect
When patients are given the negative control (placebo pill), many see results because they think they are getting real medicine
What system of measurements do we use when collecting data?
Metric System
What process is sunlight essential for in plants?
Photosynthesis
Name the planets in our solar system in order from the sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, (Pluto!)