TIGER

ACS Resources: 13 results
Solving Dissolving  
In this hands-on activity, which is part of the ACS-Science for Kids collection, students explore some of the properties of solvents and solutes. Students try various combinations to see which ones dissolve and which ones do not.
Solutions / Solvents
State Your Solution  
In this hands-on activity, which is part of the ACS-Science for Kids collection, students explore some of the properties of solutions. Solutions of solids dissolved in gases as well as solids dissolved in liquids are investigated.
Solutions / Solvents
Bubble Trouble  
In this activity students investigate the effect of hard water on soap. They compare soap in water with soap in water plus Epsom salt. Epsom salt is made of a chemical called magnesium sulfate. When magnesium sulfate is dissolved in water and added to soapy water, the magnesium combines with the soap. This combination is actually a new substance that doesn't dissolve well in water. The common name for this substance is soap scum. Since it can't dissolve in water, the soap in the soap scum can't get back into the water and can't make bubbles.
Precipitation / Solubility |
Solutions / Solvents
Crystal Stencil Stars  
In this activity, students use a saturated solution of Epson salts to make artistic stars. The star shapes are cut from paper and painted with the saturated solution. As the solution dries, the Epson salts recrystalize, creating beautiful crystals all over the surface.
Precipitation / Solubility |
Solutions / Solvents
Dissolving  
A collection of activities that explore basic concepts dealing with how solutions form. They are written for the 4-6th grade level.
Solutions / Solvents |
Precipitation / Solubility
Magma ? All Gassed up to Go  
The gases in magma are under extreme pressure far beneath the earth's surface. In this activity, students use soda as a model for the behavior of magma.,
Precipitation / Solubility |
Solutions / Solvents
Newspaper Collage  
In this activity, students create a collage by transferring images from a newspaper. By wetting the images with a weak acid solution, the image is dissolved, allowing it to transfer.
Precipitation / Solubility |
Solutions / Solvents
On the Moooooove  
In this activity students place drops of food coloring on the surface of various types of milk. They then touch the center with some detergent on end of a toothpick. The food coloring spreads out most in the skim, least in the half & half, and somewhere in between in the whole milk. Since milk is made mostly of water and fat, the food coloring looks different in the different milks because the food color mixes easily in water but not in fat. So the most mixing is in the skim milk which has the most water and the least fat. The least mixing is with the half & half which has the least water and the most fat. The food coloring moves differently in the three types of milk when the detergent is added. This also has to do with the way detergent acts in different mixtures of water and fat.
Precipitation / Solubility |
Solutions / Solvents
All Wet  
In this hands-on activity, which is part of the ACS-Science for Kids collection, students explore some of the properties of solvents and solutes. Liquid-liquid solutions are explored to see if all liquids are soluble in water.
Solutions / Solvents |
Water / Water Chemistry |
Noncovalent Interactions
Avogadro?s Bubbly Adventure  
Small amounts of gases are soluble, or dissolve, in water.,Two of these gases are oxygen and carbon dioxide. For,example, carbon dioxide gas is what gives soft drinks their ?fizz?.,And fish use oxygen dissolved in water for their body chemistry,,much like humans do. When there is not enough oxygen dissolved in,the water, fish can ?suffocate?. In this activity students study the,solubility of gas in water at different temperatures to see whether temperature changes this property.
Gases |
Solutions / Solvents |
Precipitation / Solubility |
Stoichiometry
Dissolving's Sweet Solution  
If a solid dissolves in one liquid, will it necessarily dissolve in other liquids? In this hands-on activity, which is part of the ACS-Science for Kids collection, students explore some of the properties of solvents and solutes.
Solutions / Solvents |
Precipitation / Solubility |
Noncovalent Interactions
Ice: The Hard Facts  
When water freezes, the water molecules arrange themselves in a special way to form ice crystals. The crystals repeat ,themselves over and over again to form a nice hard piece of ice. In this investigation, students explore what happens to its freezing when water has salt or sugar dissolved in it. , ,
Phases / Phase Transitions / Diagrams |
Solutions / Solvents
If Mixing Is Urgent, Try Detergent  
Normally, oil and water do not mix together very well. This fact makes it hard for water to wash away oily dirt. Detergent can help water and oil mix together. This mixing helps the water wash the oil,away. In this activity students observe the effect of detergent on water and oil.
Precipitation / Solubility |
Solutions / Solvents |
Noncovalent Interactions