Variable
True or False: The definition of an EXPERIMENT (for your science fair) needs a variable.
True
How many trials should we do in an experiment
3+
Fact or Opinion:
Worms are gross.
Opinion
Why is it important in the science world to interpret your data to form a conclusion?
So that others can compare your data with others to make future discoveries and predictions.
Define VARIABLE
It is the change added to the experiment that is being tested.
Gio is testing to see which design of a paper airplane will travel the farthest distance. He designs two different airplanes using paper, folding them different. Name one of two aspects of the paper that need to be controlled.
The size and type of paper.
Define Quantitative
Involving specific measurable numbers (quantity).
Name the observable fact:
Tomorrow the banana will not be edible.
Green bananas are better for you than yellow bananas.
The sugar content on the yellow banana is higher than the green banana.
The sugar content on the yellow banana is higher than the green banana.
How many changes should you make to test in an experiment?
One
A control in an experiment is everything that ________ the _________.
remains the same.
What are the steps in an experiment referred to in the scientific method?
Procedures
Find the observation:
A. It is difficult to use a lawnmower because it takes leg strength.
B. Lawnmowers cut grass using mechanical energy, transferred from stored chemical energy
C. You should wear safety goggles when operating a lawnmower.
B
The brand type of trains.
How many controls do we need in an experiment?
It depends on what the experiment is!
What is the reason why we want to repeat our experiments?
To ensure/verify that the results are accurate
An observable fact, defined in science, is not something that is always true, but something that can be _______ or dis-_________.
proven or disproven
Olivia conduct an experiment where she wanted to see what effect does different pitches of sound have on lima bean growth. She had a control group without sound. Her data showed that sound had zero effect on the plant growth, which was not her hypothesis. Should she still use this as a science fair experiment? Explain why or why not.
Olivia should still use this because data we didn't expect provides the science community with important and sometimes new information about the question.
Abrielle wants to know the observable effects of doubling the amount of baking soda in her Grandma's mango cookie recipe from 1 tsp to 2 tsp. Then she retests the experiment using 1/2 tsp of baking soda. What is the control group?
Cookies with 1 tsp of baking soda.
Why is it most important to still share your work when your data did not match your prediction/hypothesis?
That data can still provide us with useful, new, or unexpected information.
Not all scientific research, investigations, or experiments have to follow the same scientific method. WHY?
Science changes constantly, and it needs new, evolving, creative ways to answer questions through new concepts and ideas.