Students create a biosphere using the computer program SImEarth. They work in small groups to create "Daisyworld" in which they model aspects of the Gaia hypothesis. They form a question to answer and choose variables to investigate in...

In this math club #1:  algebra worksheet, 9th graders work in groups to solve 6 algebraic expressions.

Third graders become familiar with the effects of force through curling.  In this turnip curling lesson plan, 3rd graders experiment with a turnip curling stone on various surfaces. Students are assess with a new variable and...

Pupils discuss the importance of water in our daily lives. In this physics lesson, students calculate the pressure of water tower systems. They investigate the effect of certain variables using a computer simulation.

Students estimate the pH based on the use of an unknown substance, determine whether an unknown substance is acid, base or neutral, and evaluate, by the pH determination, which of the unknowns is the strongest acid or base.

Students must plan, design, and conduct an experiment that answers the scientific question: "Come up with a question that addresses the factors (variables) of the water and its effect on whether an object floats or sinks."

Second graders explore energy and motion. They investigate how sound energy moves in waves. Students explore how sounds are varied and how the instruments that make those sounds are built. They observe sounds being produced and predict...

Pupils explore reaction rates of an enzyme-mediated reaction. They examine the effects of environmental variables on enzyme function. Students collect, graph, and analyze data relating to the reaction.

Young scholars explore the states of water. In this physical science activity, students use ice and dry ice to observe the changes in the state of matter. Young scholars record the results.

Learners explore their weight on other planets. For this science lesson, students view a presentation about the other planets and complete a worksheet in which they make predictions about their weight on the moon and other planets.

Students study the basics of parachuting.  In this flight and aerodynamics instructional activity students make a simple parachute and investigate different variables that can cause potential problems.

Students experiment, observe, measure, and analyze what occurs during an exothermic reaction. They safely design an experiment, control variables, and properly dispose of materials.

Students explore how to show evidence of subshells and electron filling on the visual scale. They examine subshell filling and evaluate unknowns based on the atomic emission spectrum. Students design an experiment to identify colors of...

Pupils name the factors (concentration, temperature, and a catalyst) which can affect the rate of a chemical reaction. They use their knowledge of particle theory to explain their observations. Pupils comprehend that the speed(rate)...

Students use a 24-hour graph of air temperature, relative humidity, and dew point to describe at least one reason why the variables change (or don't change) during the day. They use given scenarios to identify and describe the problems...

Students view animations of several atmospheric variables (e.g., temperature, rainfall) during a cold front passage and locate the dryline, determine its direction of movement, and list at least two weather conditions associated with the...

Students manipulate different variables in a model and make inferences about the temperature on Earth.  In this heat lesson students calculate the blackbody radiation of an object at a certain temperature. 

Learners explore chemical solutions. In this chemistry lesson, students investigate the relationship between three related experiments about solutions. Learners determine variables that affect the chemical concentration of each solution.

Students study sound and how it is created.  In this sound waves lesson students complete a lab activity that shows students the variables that affect sound. 

Students participate in a research project that is exclusively using the internet. The author states that traditional labs are hard to conduct for a light lab. This one uses the internet with the intention that students can manipulate...

Students study the gas exchanges that occur during cellular respiration. They observe what happens as a result of a number of variables on the rate of respiration. They use microrespirometers to measure the oxygen consumption of...

In this science activity, students take part in a laboratory exploration looking at different types of soil. The soil is evaluated in order to fill the role of becoming a sports field.

In this chemistry worksheet, students determine the reaction rate as specified for each in seconds. Then they determine the activation energy for the reaction and preexponential factor as stated. Students also determine the concentration...

In this space science worksheet, students find the words associated with the basic terms of Astronomy. The answers are located at the bottom of the page.