Science of Science

Which of the following is NOT an observation?

• The object is slimy 
• The object smells sour
• The object is round
• The object is a grape

Which of the following is a testable question?

• What is the best fruit?
• What is the best color?
• What is the best flavor of ice cream?
• What causes soda to fizz?

What would make an experiment valid (true)?

• It includes your opinion
• Is uses objects
• It is based on evidence
• It proves your predictions are correct

What would be the BEST way to determined if your results are valid?

• Do the experiment over and over again
• Do your experiment in a different location
• Do your experiment differently
• Change the object you are testing

Which of the following is NOT a personal opinion?

• Cats are the best pet
• Cats favorite drink is milk
• Cats have fur
• Cats like living in a house

Why should scientists write down their experimental procedures?

• So the data will prove their hypothesis is correct
• So that the data will help people make a decision
• So that the experiment can be changed to get different results
• So that the experiment can be repeated by others and the results compared

To decide if hummingbirds like seeds, a students could put  bird feeders in the yard and

• give them large amounts of seeds
• give them a little bit of seeds
• Give one bird feeder seeds and not to the other
• Place them in the sun

A test variable is

• The variable you are testing
• the variable you are measuring

Elizabeth designed an experiment to find out what type of food her dogs likes best. 
Which variable needs to remain constant during the experiment?

• The color of her dogs
• The amount of food given
• The cost of the food
• The type of food given

What is a constant?

• Things that you change
• Things that remain the same
• An observation
• A variable