Scientific Method and Variables

How many steps are in the scientific investigation?

6

What is the first step of the scientific investigation?

1. Observe something and ask questions about it

What is the second step of a scientific investigation?

2. Make a hypothesis

What is the third step in the scientific investigation?

Make an experiment to test the hypothesis

What is the fourth step and the scientific investigation?

Make observations or do experiments and study data

What is the fifth step in the scientific investigation?

Analyze results

What is the sixth step in a scientific investigation?

Draw equations on whether their results support their hypothesis

What is the independent variable?

The independent variable is what the researcher purposely changes

What is the dependent variable?

The dependent variable is the outcome what is measured or observed?

If I skip many days of school, I may not pass a class. What is the independent variable?

If I skip many days of school

What is the dependent variable a type of food I eat determines how long I need to exercise

The dependent variable is how long I need to exercise

My skill level and softball is determined by how much I practice. What is the independent variable?

How much I practice

If I want to test to see if different types of paper affects how far a paper airplane should fly what should be kept the same to make it a fair test? What is the independent variable?

Independent variable is the different types of paper. The dependent variable is how far the airplane should fly.

A scientist is testing how the temperature of water affects how fast sugar dissolves. She uses cold room, temperature and hot water and records how long the sugar takes to dissolve in each. What is the independent variable and what is the dependent variable?

The independent variable is the temperature of water. The dependent variable is how fast sugar dissolves.

A teacher gives different types of music to students while they study no music classical or pop and then gives them a quiz to see how well they remember the information. What is the dependent variable and what is the independent variable?

The dependent variable is how well they remember the information. The independent variable is different types of music.

How does the amount of sunlight a plant receives affect? The number of leaves it produces? What is the independent variable, the dependent variable and the constant.

Independent variable is the amount of sunlight. Dependent variable is the number of leaves. The constant is the same plant is used.

How does the surface a ball is dropped onto affect how high it bounces? What is the independent variable, the dependent variable and the constant?

The independent variable is the surface a ball is dropped on. The dependent variable is the effect of how high it bounces. The constant is the same ball used.

How does the temperature of water affect the time it takes for a sugar cube to dissolve? What is the independent variable, the dependent variable and the constant?

The independent variable is the temperature of water. The dependent variable takes the sugar cube dissolved. The constant is the same sugar cube.