Model hardness testing with a self-designed hardness test. Young scholars rate the hardness of different types of aspirin using the Vicker's Hardness scale. They then relate hardness to the solubility of each aspirin tablet.

A thorough PowerPoint provides information related to changes in heat. The contrast between day and night temperatures is included. The concepts of boiling and freezing are also covered. Insulators and conductors are presented as well.

Heat up your lessons on boiling points. The resource provides a three-part activity: first, groups find the boiling point of solutions; second, they create boiling point curves for salt and sugar solutions; and third, they mix a solution...

Develop a formula based upon numerical computations. The 31st part of a 33-part unit has the class determine the formula to convert a temperature in Celsius to a temperature in Fahrenheit. They do this by making comparisons between the...

Did you know many insects use cohesion or surface tension to walk on water? Using a presentation, scholars learn the more important properties of water. It extends into the concepts of solutions, suspensions, pH, and more.

Scholars develop the conversion formulas between Fahrenheit and Celsius with a task that presents the class with two known temperature equivalents between the two scales. Pupils use those two points to develop the linear conversion...

In this freezing and boiling point graph learning exercise, students use the graph illustrated to respond to several questions that follow. They identify what is the freezing, boiling, and melting point of the substance in the graph....

In this kinetic theory worksheet, students are given fifteen questions about gases and their kinetic energy, how temperature effects kinetic energy, and the results of changing conditions of gases on the kinetic energy. They convert from...

Sixth graders study heat, temperature, and heat transfer. Using probeware, the teacher demonstrates boiling points. Students participate in experiments and record the beginning and ending temperatures and mass of objects. After...

Learners calibrate an alcohol thermometer using the boiling and freezing point of water. In this physical science lesson, students explain what happens to boiling point of water as altitude increases. They calculate their experimental...

In this chemical solutions instructional activity, students determine the molecular weight of a substance, determine the boiling and freezing point of solutions, and determine molarity of a solution. This instructional activity has 3...

The phase diagram tops this chemistry quiz. Junior scientists answer eight multiple-choice questions as they analyze it and make calculations regarding the heat of vaporization. 

In this National Chemistry Olympiad test, junior chemists answer eight problem solving questions on a variety of topics. These include calculating molarity of solutions, determining rates of reactions, calculating decay and discussing...

Scientists have been studying exothermic reactions before they were cool. The lesson begins with a discussion and a demonstration of heat curves. Scholars then determine the heat of fusion of ice and the heat needed to...

Learners observe how salinity affects the time it takes water to freeze. They participate in an experiment to determine that ice is essentially salt-free whether formed from fresh or salt water

Learners investigate the relationship between the Fahrenheit and Celsius temperature scales. Given two data points, they construct a linear function to describe the relationship, find the inverse of the function, and make observations...

In this water worksheet, students review the properties of water including the density, boiling point, and evaporation. Students define mixture, solute, and solvent. This worksheet has 22 short answer questions.

Students investigate the cooling and heating of water. In this online science experiment lesson, students work in groups to make predictions regarding freezing and boiling points and then test those predictions as they complete the...

Do solids, liquids, and gases even matter? The presentation focuses on changes in matter, including phases, Boyle's Law, Charles' Law, and physical changes. 

In this science worksheet, students incorporate their knowledge of math to solve the given problems about freezing points through conversions. They convert from unit to the other.  There are 10 questions.

For this reviewing water and changes of state worksheet, students answer questions about water vapor, state of water, freezing point of ice, evaporation, condensation, distillation, dry ice, and the water cycle. Students answer...

In this temperature conversion worksheet, students use the formulas of converting Celsius to Fahrenheit and Fahrenheit to Celsius to calculate the temperature in given problems.

In this integers and absolute value worksheet, learners write the opposite value for each integer in the first twenty problems. They write the absolute value for twelve problems in the second set, and finish with two test prep questions...

Young scholars view a video which introduces them to density and the states of matter. They experiment, collect data, and graph the boiling/freezing points of several edible items...and then make brownies!