Activities

ChemEd X activities are student-centered resources intended to aid learning chemistry topics.

ChemEd X emphasizes inquiry-based activities where students pose questions (with direction from the teacher) and then attempt to discover the answers through scientific inquiry.

Writing Conversion Factors

by DAVID LICATA
Sat, 11/15/2014 - 23:01

This worksheet is intended to be used as a "Guided Instructional Activity" (GIA). Students read a statement that gives a either a conversion factor or a pair of related measures and then write the information as two equivalent fractions ("conversion factors") and as an equality.

Recent activity: 7 months 2 weeks ago

Stoichiometry Guided Instructional Activities with Guide Framework

by DAVID LICATA
Sat, 11/08/2014 - 21:40

This set of three worksheets are intended to be used as collaborative "Guided Instructional Activities" (GIAs). Two students cooperate to complete the steps of a stoichiometry problem, alternately doing parts of the process as they explain what they are doing and evaluate their partner's work.

Recent activity: 7 months 2 weeks ago

Mole Conversion Guided Instructional Activities

by DAVID LICATA
Fri, 11/07/2014 - 23:37

The three "Guided Instructional Activities" in this activity are three cooperative learning pieces in which students are guided through the process of converting from one unit to moles (or moles to a unit) by the method of "unit analysis" (dimensional analysis). Students alternate steps in the process and evaluate the success of each step.

Recent activity: 7 months 2 weeks ago

Mole Conversions: 1- & 2-step with format

by DAVID LICATA
Wed, 11/05/2014 - 19:52

This worksheet asks students to do basic conversions of mass or molecules to moles and vice versa.

Recent activity: 7 months 2 weeks ago

Finding and Writing the Molar Mass of Elements

by DAVID LICATA
Tue, 11/04/2014 - 20:09

This worksheet is intended to be used as a "Guided Instructional Activity" (GIA). It asks students to find the molar mass of selected elements and write the molar mass as two equivalent fractions ("conversion factors") and as an equality. It is designed to help develop good habits in representing molar mass and other conversion factors, and to emphasize the idea that a conversion factor has a numerator and denominator that "name" identical quantities using different measures.

Recent activity: 7 months 2 weeks ago

Stoichiometry Fireworks Lab Quiz

by DAVID LICATA
Mon, 11/03/2014 - 21:39

Given the amount of one reactant, students must use stoichiometry to find the ideal amount of the second reagent to use to create purple fireworks. The teacher ignites each groups' fireworks. Ideal mixture create little or no ash. Student assignment sheet with directions (and different initial amounts) plus teacher information and sample answers are included. This is an exciting and engaging activity that can be used as a stoichiometry quiz.

Recent activity: 6 months 2 weeks ago

Mass of a Reaction Product

by DAVID LICATA
Wed, 10/29/2014 - 21:41

Students combine sodium carbonate and hydrochloric acid generating carbon dioxide gas which is allowed to escape. They measure the actual yield of carbon dioxide produced (missing mass), calculate the theoretical yield using stoichiometry, and then the percent yield. Students understand that 100% yield is the most appropriate answer (based on the Law of Conservation of Mass), so after considering the meaning of significant figures and the uncertainty of their measurements they are asked to decide if they did (or did not) get an answer that might indicate the validity of the Law.

Recent activity: 7 months 2 weeks ago

Density "POGIL-Like" Activity

by Shelly Belleau
Mon, 07/14/2014 - 17:43

Although many students have been exposed to the concept of density before reaching my Chemistry class, I always start the year with this POGIL-like activity.

Recent activity: 1 year 3 months ago

Endothermic and Exothermic Activity

by Deanna Cullen
Tue, 04/29/2014 - 17:23

Endothermic and exothermic reactions and processes are a common topic in chemistry class. This activity provides examples that can be done with household materials.

Recent activity: 1 year 1 month ago

Ice Cream in a Bag

by Deanna Cullen
Mon, 04/28/2014 - 13:10

Make ice cream in a baggie to emphasize energy changes, direction of energy transfer, dissolution and colligative properties.

Recent activity: 1 year 1 month ago