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
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.
Center for Learning in Action
Introduction to the States of Matter
Liquids, gases, and solids are the states of matter in which scholars investigate in a lesson plan that offers in-depth information and engaging activities that look into the three states and the changes their properties make when mixed...
American Chemical Society
Changing State: Freezing
There are five types of frost: ground frost, air frost, hoar frost, glaze, and rime. Scholars mix ice and salt in a metal container to observe frost forming on the outside of the can. Animations and videos enhance the learning.
DiscoverE
Creepy Putty
Mold your learners into materials engineers. Using glue, Borax, and water, scholars create a viscoelastic material. But your class might know it by another name—Silly Putty.
American Chemical Society
Temperature Affects Dissolving
Stir chocolate drink mix into hot and cold water to see if there is a difference in how quickly it dissolves. Number three in a six-instructional activity unit on dissolving, this installment investigates the effect of temperature. If...
American Chemical Society
A Dissolving Challenge
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....
Teach Engineering
Density Column Lab - Part 2
Groups suspend objects within layers of liquids to determine the densities of different liquids and compare them to the densities of objects calculated in Part 1. The groups then carefully test their calculations by layering the liquids...
Cornell University
Isotopes
What better way is there to learn about isotopes than to play with them? Chemistry students manipulate the number of protons and neutrons in a hands-on activity. Individuals try to score the largest number of points by collecting the...