1. Identifying Variables Research Question and Hypothesis

2. Question 1: The temperature of water was measured at different depths of a pond. What is the independent, Dependent and controlled variables?

3. What are the variables in this investigation?
Independent variable – depth of the water
Dependent variable – temperature
Controlled variable – thermometer used, pond

4. Question 2: Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the independent, dependent and controlled variableS?

5. What are the variables in this investigation?
Independent variable – different ages of students
Dependent variable – the time taken to solve the puzzle
Controlled variable – the puzzle

6. QUESTION 3: THE HIGHER THE TEMPERATURE OF WATER, THE FASTER AN EGG WILL BOIL. WHAT IS THE INDEPENDENT, DEPENDENT CONTROLLED VARIABLES?

7. What are the variables in this investigation?
Independent variable – temperature of water
Dependent variable – time to cook
Controlled variable – type of egg, size of egg, amount of water

8. Research Question – I.v. and D.v.
Change these statements to research questions.
1.Some people work better in the morning, and other people work better in the afternoon.
2. Animals behave in strange ways before an earthquake.
3. Each year when the weather gets cold, birds fly to warmer regions.

9. 1. What causes some people to work
Research question
1. What causes some people to work
better in the morning and some in the
afternoon?
2. What are the effects or earthquakes
on animal behavior?
3. What is the relationship between cold
weather and birds flying to warmer
regions?

10. If people are given different tasks to complete,
Hypothesis
If people are given different tasks to complete,
then most people will work better at each task
in the morning because they are more alert and
refreshed in the morning.
If shaking of an earthquake is simulated then
one can observe animals behaving strangely
because the vibrations in the ground agitate them.

11. If the weather gets cold then you will observe
Hypothesis
If the weather gets cold then you will observe
birds flying to warmer regions because
birds follow the warm weather.