After collecting carbon dioxide bubbles from a cup of club soda, learners attempt to make their own lemon soda while preventing the loss of carbonation. They do so by creating a syrup before mixing the substances into the club soda....

Lub-dub, lub-dub. Why does the heart beat? Why does blood circulate throughout the body? Life scientists find out how important circulation is for dissolving and dispersing materials by timing how long it takes for food coloring spread...

Do all liquids evaporate at the same rate? Young scientists observe the evaporation rate of three different liquids. They measure the time, the temperature, and the change in energy. After comparing the chemical formulas, scholars...

Salinity is the focus of two experimenters that work to answer the question, How does salt change the physical properties of water? Super scientists compare the freezing rate of salt and fresh water, combine the two waters to...

Investigate the amazing ability of plants to filter contaminants from water with this series of in-class demonstrations. After placing six small, potted plants in plastic cups, different solutions and mixtures are poured into them that...

Assist your middle school class with one of the most inclusive weathering and erosion labs available. Individuals use sugar cubes and alka-seltzer to demonstrate the process of physical and chemical weathering. They sketch results...

In this activity, students will use a Temperature Sensor to collect data and then analyze that data to determine the effect of temperature increases on the rate of dissolving. They will identify temperature as a factor in dissolving rate...

Answer the question of whether cocoa mix dissolves in hot water or cold water in this activity. Help students see how temperature affects the rate at which solids dissolve. This lesson includes teacher and student instructions.

This activity investigates the question of whether colored sugar dissolves at the same rate in water, vegetable oil, and alcohol. This lesson includes teacher information and student activity sheet.

A challenge where students are asked to make a lemon soda that holds as much carbonation as possible by using three ingredients. This lab experiment includes a demonstration, challenge, and mini-report. Also, this lab experiment includes...

An activity to investigate the factors that affect the rate of a substance dissolving. In this activity, students see if the rate of dissolving of the M&M coat is changed by the amount of sugar already dissolved in water. This...

An activity where students can experiment with whether different colors of M&Ms dissolve faster in water versus others. This lab includes a student worksheet and teacher instructions.

An activity where students experiment with the effect of temperature on how fast the colored coating dissolves on M&M's. Activity includes student and teacher instructions.

A lab experiment to estimate the rate of photosynthesis by measuring the dissolved inorganic carbon found in the water. Students will be able to calculate primary productivity of the phytoplankton in this lab

Learn about the effect of temperature on the solubility of gases in this lab activity. This lab activity includes instructions for both student and teacher.

Students determine how the temperature of water affects the dissolving time of a sugar cube. They create, interpret and analyze graphs of data, find an equation of the line of best fit, and relate slope to rate of change.