This lesson will explain the difference between independent and dependent variables. It is 2 of 4 in the series titled "Independent/Dependent Variables."

This lesson will explain the difference between independent and dependent variables. It is 3 of 4 in the series titled "Independent/Dependent Variables."

This lesson will explain the difference between independent and dependent variables. It is 1 of 4 in the series titled "Independent/Dependent Variables."

Conduct an investigation collaboratively on the effect of force applied on an object to produce data to serve as the basis for evidence, by using fair tests in which variables are controlled and the number of trials are considered.

This lesson will explain the difference between a control group and variable groups, when using the scientific method. It is 3 of 4 in the series titled "Control and Variable Groups."

This lesson will explain the difference between a control group and variable groups, when using the scientific method. It is 4 of 4 in the series titled "Control and Variable Groups."

This lesson will explain the difference between a control group and variable groups, when using the scientific method. It is 1 of 4 in the series titled "Control and Variable Groups."

[Free Registration/Login may be required to access all resource tools.] Covers the scientific experimental design.

An easy to do activity that investigates the basic principles behind chemical bonding. The activity is written in lesson plan format that meets NSES standards.

[Free Registration/Login may be required to access all resource tools.] Experiments, experimental variables, and experimental controls are discussed.

This curricular unit contains two lessons that let students actually do the work of scientists as they design their own experiments to answer questions they generate. In the first lesson and its associated activity, students conduct a...

[Free Registration/Login may be required to access all resource tools.] Experiments, experimental variables and experimental controls.

In this instructional activity, young scholars investigate factors that affect the health of the oceans. These include overfishing, the destruction of habitats, the invasion of foreign species, the impact of pollution, and the increasing...

[Free Registration/Login may be required to access all resource tools.] Introduction to scientific experiments.