American Chemical Society
Defining Dissolving
Physical science investigators mix sugar and food coloring into different cups of water and cooking oil to compare how the solid and liquid behave in each. As the introduction to this unit on dissolving, it is relevant.
American Chemical Society
Dissolving a Substance in Different Liquids
Second of six lessons in a unit on dissolving, this one focuses on how sugar behaves in different liquids. Learners stir it into water, alcohol, and oil and make observations. This lesson can stand alone, but is best used as part of the...
American Chemical Society
M&M's in Different Sugar Solutions
To conclude a mini unit on the dissolving of M&Ms® candy coating, this lesson investigates whether or not the concentration of sugar in the solvent affects the dissolving rate. Consider having older science learners write their own...
American Chemical Society
Does Temperature Affect Dissolving?
When making sweet tea, why do people dissolve the sugar in hot tea instead of cold tea? The class discusses the previous lab and builds upon it. Working in groups, they design an experiment to determine how temperature affects the...
American Chemical Society
Mysterious M&M's
The first in a six-lesson mini unit, all using M&Ms® candies, this physical science activity gets kids to observe a single piece and discover what happens when it is placed in a plate of water. The activity can be used to...
Curated OER
Investigating the Change
Sugar crystal growth is observed as an example of physical change and cabbage juice pH indicator is used to demonstrate chemical change. The crystal growth is tracked over five days. The cabbage juice experiment is involved and can also...
Curated OER
A Sweet Drink
Students investigate reaction rates. In this seventh or eighth grade mathematics lesson, students collect, record, and analyze data regarding how the temperature of water affects the dissolving time of a sugar cube. Studetns...
American Chemical Society
Solubility Test
Make sure to consult the teacher's handbook, Inquiry in Action - Investigating Matter Through Inquiry, for two demonstrations that can be done to introduce solubility and measuring crystal mass before having the class conduct this...
Cornell University
Energy Changes in Chemical Reactions
The heat of solution measures how much thermal energy a dissolving substance consumes or gives off. The experiment demonstrates both endothermic and exothermic reactions. Scholars dissolve several substances, measure the temperature...
LABScI
Freezing Point Depression: Why Don’t Oceans Freeze?
Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions...
Curated OER
Factors that Affect Reaction Rates
Collaborating chemistry pupils observe that temperatrue increases the movement of dye throughout water, stirring increases the dissolving rate of sugar cubes, and concentration of solutions increases the chemical reaction rates. These...
Curated OER
Reversible/Irreversible changes
Students observe an online activity where they see some solids dissolving and some not dissolving. For this dissolving lesson plan, students learn which solids will dissolve, melt, and which won't. They will also see which effects are...
Curated OER
Sink or Swim
Learners explore sinking and floating. In this buoyancy instructional activity, students conduct an investigation dealing with regular and diet soda. Learners drop various soda cans into water and then discuss why some float...
Curated OER
Ziplock Chemistry
Students investigate various chemical reactions when creating mixtures in ziplock baggies. In this chemistry lesson, students will recognize various chemical reactions and cite evidence. Safety and assessment strategies are included in...
Curated OER
Rock Formation
Students investigate rock formation through cementation, compaction and evaporation. In this rock formation lesson plan, students simulate the process of evaporation, cementation and compaction in the lab. Students explain the formation...
Curated OER
Rate of Solubility
Students investigate factors affecting the rate of solubility. In this rate of solubility lesson plan, students experiment by crushing, heating and cooling solutes and solvents to see how the solubility is affected. For each situation,...
Curated OER
We All Scream for Ice Cream
Students investigate the freezing point depression of water while making ice cream. For this colligative properties lesson plan, students make ice cream using ice, salt and water to freeze milk and sugar. They measure the temperature of...
Curated OER
Planets in a Bottle
Students experiment with yeast. For this environmental conditions lesson students test the viability of samples of yeast. Students investigate the effects of environmental conditions on the yeast.
Curated OER
The Chemistry of Water
Students investigate the properties of water. In this chemistry of water lesson plan, students observe a demonstration of the properties of water using sand, sugar, oil, vinegar and salad dressing. Students experiment with water, pepper,...
Curated OER
Ion (Derstand) Bonding through Energy Level Diagrams
Ninth graders investigate ionic bonding through energy level diagrams. For this ion bonding lesson plan, 9th graders observe demonstrations to show energy level diagrams using magnets to represent the subatomic particles. Students fill...
Curated OER
Tree Birthdays
Students investigate the growth of trees. In this tree growth lesson plan, students discover that trees make a ring each year they live. Students use new voabulary such as bark, phloem, and cambuim to talk about tree parts. Students...
Curated OER
Rate of Solution
Eighth graders determine the amount of agitation necessary to dissolve various sized sugar particles. This task assess students' abilities to collect, organize, and interpret data, create appropriate graphs, predict future events based...
Curated OER
Bigger Better Bubbles
Students research different types of bubble gum and identify the variables in them. In this bubble gum lesson students design an investigation to test their hypothesis and graph their data.
Curated OER
The Exceptional Nature of Cellulose
Pupils observe the affects of a substance's composition and structure have on its solubility. In this cellulose instructional activity students compare the amount of energy required to dissolve mono-saccharides with that required...