Science is a Process Review Coordinated Science 1

Essential Question Warm Up- September 7th How do scientists get reliable data? What processes do they use? Warm Up- September 7th Describe the steps of the Scientific Method in your journal, when the song is over time is up!

What is the correct order?

What type of observation ?

What type of observation?

Gum Drop Lab

A variable is something that can be changed in an experiment. What is a variable? A variable is something that can be changed in an experiment.

Types of Variables There are 3 kinds Independent Dependent Controlled

Types of Variables Independent Variable - something that is changed by the scientist What is tested What is manipulated

Types of Variables Dependent Variable- something that might be affected by the change in the independent variable The condition that will be measured in an experiment.

Types of Variables Controlled Variables The conditions that are kept the same (unchanged) in an experiment.

Identify variables for the following experiments. Practice Identify variables for the following experiments. You can do it!

Testable Question #1 Does changing the temperature of a ball affect the height the ball will bounce? Cold Hot

Identify Variables #1 Independent Variable Does changing the temperature of a ball affect the height the ball will bounce? Independent Variable Cold Hot Dependent Variable

Identify Variables #1 Controlled Variables: * Same ball * Dropped from the same height * Dropped onto the same surface * etc…

Testable Question #2 Does changing the color of light affect the growth rate of plants?

Identify Variables #2 Independent Variable Does changing the color of light affect the growth rate of plants? Independent Variable Dependent Variable

Identify Variables #2 Controlled Variables: * Same type / size of plant * Same wattage of bulb * Same amount of water * Same soil * Light on for the same amount of time * etc…

Testable Question #3 How does the size of a parachute affect the time it takes a toy hippo to fall 10 feet?

Identify Variables #3 IndependentVariable How does the size of a parachute affect the time it takes a toy hippo to fall 10 feet? IndependentVariable DependentVariable

Identify Variables #3 Controlled Variables: * Same hippo * Dropped from the same height * Same parachute fabric * Same length of strings on the parachute * etc…

Exit Ticket Create a Venn Diagram. On each circle write the differences between independent and dependent variables and where the circles overlap write the similarities.