Show:
Variable
Control
Experimental Design
Opinion?
Lonely Joe
100

True or False:  The definition of an EXPERIMENT (for your science fair) needs a variable.

True

100
Do we always need a control group in an experiment?
No.  
100

How many trials should we do in an experiment

3+

100

Fact or Opinion:

Worms are gross.

Opinion

100

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.

200

Define VARIABLE

It is the change added to the experiment that is being tested.

200

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.

200

Define Quantitative

Involving specific measurable numbers (quantity).

200

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.

300

How many changes should you make to test in an experiment?

One

300

A control in an experiment is everything that ________ the _________.

remains the same.

300

What are the steps in an experiment referred to in the scientific method?

Procedures

300

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

400
Sebastian wanted to do a product comparison to see which train would run faster on a track between AwesomeCo. and TrainBrains.  He placed Awesome Co. on the same track and recorded how far the train went for 1 minute.  He repeated the trial 5 times.  He then did the same trial with the TrainBrains train.  What is the variable?

The brand type of trains.

400

How many controls do we need in an experiment?

It depends on what the experiment is!

400

What is the reason why we want to repeat our experiments?

To ensure/verify that the results are accurate

400

An observable fact, defined in science, is not something that is always true, but something that can be _______ or dis-_________.

proven or disproven

500

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.

500

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.

500

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.

500
Daily Double:  Worth 1000 points! 

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.