Substances and Chemical Reactions

  Classroom Resource Information  

Title:

Substances and Chemical Reactions

URL:

https://aptv.pbslearningmedia.org/resource/phy03.sci.phys.descwrld.lp_chemical/substances-and-chemical-reactions/

Content Source:

PBS
Type: Lesson/Unit Plan

Overview:

In this lesson, students observe chemical reactions that produce obvious effects (as opposed to reactions in which the substances appear not to change at all). They begin by exploring a different substance every day for one week. They compare the substances and learn that substances can be solids, liquids, or gases. Next, through teacher demonstration (or direct, supervised student involvement), students watch what happens when sand and water are mixed together (no chemical reaction), and when several pairs of acids and bases are mixed together (a chemical reaction occurs). Students then get to build their own "film canister rockets," using baking soda and vinegar as rocket fuel. This lesson concludes with open-ended thinking when students are asked to determine where rust comes from.

Content Standard(s):
Science
SC2015 (2015)
Grade: 5
2 ) Investigate matter to provide mathematical evidence, including graphs, to show that regardless of the type of reaction (e.g., new substance forming due to dissolving or mixing) or change (e.g., phase change) that occurs when heating, cooling, or mixing substances, the total weight of the matter is conserved.


Alabama Alternate Achievement Standards
AAS Standard:
SCI.AAS.5.2- Recognize that regardless of the type of reaction (e.g., new substance forming due to dissolving or mixing) or change (e.g., phase change) that occurs when heating, cooling, or mixing substances, the total weight of the matter is conserved.


Science
SC2015 (2015)
Grade: 5
4 ) Investigate whether the mixing of two or more substances results in new substances (e.g., mixing of baking soda and vinegar resulting in the formation of a new substance, gas; mixing of sand and water resulting in no new substance being formed).


Alabama Alternate Achievement Standards
AAS Standard:
SCI.AAS.5.4- Predict whether the mixing of two or more substances results in new substances (e.g., mixing of baking soda and vinegar resulting in the formation of a new substance, gas; mixing of sand and water resulting in no new substance being formed).


Tags: acid, bases, chemical reaction, gas, liquid, solid, substance
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Author: Stephanie Carver