Let’s Review!

1. Name the steps of science inquiry in

order.

The following 9 slides are vocabulary definitions. Give

me the word or phrase:

2. All the factors that could affect the outcome of an

experiment

3. Facts, figures and other evidence collected in an

experiment. It can be displayed in the form of diagrams, tables or graphs

4. In this step, you should restate the

question and hypothesis, summarize the results,

state if you were correct and predict the next

question.

5. Interpretations or assumptions based on

observations and prior knowledge

6. Involves using one or more of your senses to gather

information

7. One in which there is only one

manipulated variable and all other

variables are kept constant

8. Scientists usually begin an investigation

with this.

9. The factor that scientists change in an

experiment

10. This is a possible explanation or an

answer to the question. It must be tested

several times to make sure the results are

consistent.

11. Write a question that they can

investigate to solve this problem.

A new dog food factory wants to

sell the best tasting dog food

and needs to find out which

flavors dogs will eat the most .

12. From this observation, write an inference about the dog food and/or

the dogs.

The scientist hired by the company

observes and measures the amount and

kind of dog food the company throws

out each week. She has documented that

they throw out 5 pounds of chicken

flavored, but only 2 pounds of beef

flavored each week.

13. Write a hypothesis for the

experiment.

14. Sketch a bar graph to communicate the above information in the space

provided. Be sure to include all things that are required

in a graph.

The scientist conducts an experiment to discover which food the dogs

prefer. After serving the same amount of each type of food on a daily

basis for one week, the scientists measured the amounts left over.

7 pounds of beef were left

3 pounds of chicken were left

8 pounds of pork were left

7 pounds of fish were left

15. Pretend you are the scientist. Write a conclusion for your

experiment. Remember, the conclusion must

contain 5 different parts.

16. What would be the manipulated variable in the previous investigation?

17. List a couple of variables that need to be constant.

Let’s

check your

answers!

1: Question Observation Inference Hypothesis Experiment Data Conclusion

2: Variables

3: Data

4: Conclusion

5: Inferences

6: Observation

7: Controlled experiment

8: Question

9: Manipulated variable

10: Hypothesis

11. POSSIBLE ANSWER: Which flavor of dog food do most dogs prefer?

12. POSSIBLE ANSWERS: Dogs prefer beef over chicken. The company buys more chicken.

13. POSSIBLE ANSWER: Dogs will like the beef flavored food best.

14. POSSIBLE ANSWER:

0

1

2

3

4

5

6

7

8

Beef Chicken Pork Fish

Types of food

Pounds

Of food

How Much Dog Food is Thrown Out?

15: POSSIBLE ANSWER: In my experiment I tested 4 types of dog food on 25 different dogs to see which flavor of food the dogs liked best. I predicted that the dogs would prefer beef flavored food. The dogs’ choices of food were beef, chicken, pork and fish. After serving the same amount of each type of food on a daily basis for one week, the scientists measured the amounts left over. 7 pounds of beef were left, 3 pounds of chicken were left, 8 pounds of pork were left, 7 pounds of fish were left. My hypothesis was incorrect. I’m wondering if the species of dog has an effect on the dogs’ choices, so now I will only test one species of dog at a time.

16. The types of dog food was the manipulated variable.

17. Some variables that needed to remain constant were the place where the dogs ate and the amount of food that was given them.