Day 1- Teacher will begin lesson by going over the learning purpose - that the weight of an object after an interaction is the same weight it would be before (the sum of parts equals the whole). Students will be given a small canvas (i.e. - small cloth canvas, cardstock, cardboard, etc.). Teachers will allow students to use various materials to create a masterpiece (i.e. - paint, buttons, pom poms, etc.). Each group would be tasked to weigh objects BEFORE adding them to their masterpiece (for paint or other consumables - weight bottle before and after use). Students would TRY to prove the teacher wrong by saying that the sum of their masterpiece was greater or less than the sum of its parts. Day 2 - Students would present whether they proved the teacher right or wrong, then peers would analyze their work by asking clarifying questions.

This resource accompanies our Rethink 5th Grade Science course. It includes ideas for use, ways to support exceptional children, ways to extend learning, digital resources and tools, tips for supporting English Language Learners and students with visual and hearing impairments. There are also ideas for offline learning. 

In this lesson, students investigate the chemical and physical changes that occur in matter by participating in activities involving dry ice and root beer. Students will first explore release of carbon dioxide from carbonated beverages. Students will then view several teacher-led experiments with dry ice to demonstrate the sublimation process, including the production of root beer. In the final part of the lesson, students will create their own root beer, using multiple recipes, and compare and contrast their products. Associated resources include student worksheets, root beer recipes, and supplemental reading texts.

Both suggested learning activities in this lesson will help students understand the relationship between the weight of reactants and the weight of the products involved in chemical reactions. In the first activity students will combine borax and glue, and in the second activity they will combine vinegar and cream.

This supplemental resource is to be used during the lesson "Chemistry 201: Physical and Chemical Properties and Changes." In this lab activity, students observe various changes in matter, massing the chemicals before and after the changes.

This supplemental resource is to be used during the lesson "Chemistry 201: Physical and Chemical Properties and Changes." The data sheet will be used by students to record their data and observations during the associated lab activity. In this lab activity, students observe various changes in matter, massing the chemicals before and after the changes.

This lesson demonstrates that in a chemical reaction where a gas is produced, the mass does not change. Students will weigh an empty bottle, water, and a peice of antacid tablet, and then add the antacid tablet to water and close the bottle. When the reaction is complete, they will weigh the bottle again; then open the bottle to release the gas and weigh the bottle again. Students will communicate the results of the experiment in a written lab report.

As students are learning about substances, mixtures, and solutions, they will participate in several experiments that involve chemical reactions using regular household products. Some experiments will produce gas or create something that will grow. Students will work in groups of 2-3 students to make a car move using the result of a chemical reaction from combining two or more household substances. They will present their project to the class.

In this lesson, students explore the concept that mass is conserved during physical and chemical changes by experimenting. Students take initial masses, make predictions, and find final masses of physical changes such as ice changing to water, and the mass of aluminum foil in the form of a ball versus flat. Students work in small groups and use a balance to take the masses.

This course was created by the Rethink Education Content Development Team. This course is aligned to the NC Standards for 5th Grade Science. 

This course was created by the Rethink Education Content Development Team. This course is aligned to the NC Standards for 5th Grade Science.

These hands-on activities help students to understand that the total weight of an object is equal to the sum of its parts using modeling clay and connecting toys like Legos. Students estimate and measure total weight, then the weight when disassembled or divided into smaller pieces and then again when the object is reassembled. Students record and share their experiences and data.

In this lesson, students will complete two simple activities to demonstrate the Law of Conservation of Matter.