null Skip to Content
Science Unlocked
Cart (0)
Cart 0
Accelerate Generally suited for grades 3-7

Contain Your Excitement

Ages 8+
In Stock & Ready to Ship
Purchase 3 Kits & Save 10%


It's hard to contain your excitement with this kit! Students discover the world of matter and mass through a series of exciting and engaging experiments. Students will observe chemicals and their reactions and much more! Read More

My Science Perks members earn at least $0.90 back on this item. Sign In or Create a Free HST Account to start earning today

Product Information


The Science Unlocked Accelerate level curriculum kit, Contain Your Excitement: Changes in Matter and Mass, is packed with exciting and engaging activities! Bag up your excitement for chemistry with this kit to learn what happens to matter during physical and chemical changes. Perform a colorful reaction in a bag, compare the mass before and after a series of experiments, model particles with paper dots, and learn how the conservation of mass is related to fossil fuels.

"Contain Your Excitement" comes with a full-color Student Curriculum Workbook and a Teacher Guide. It is a phenomenon-based approach, designed to fully engage students in the science of chemical reactions. Through a series of experiments, students will learn what happens to matter and mass during chemical reactions and physical changes and how they can represent those changes on a particle level.

As part of a special program from Home Science Tools, this Accelerate level kit will provide over 11 hours of engaging instruction, helping your student gain knowledge and confidence while doing real science.

In this kit, the student will do these activities and more:

  1. Mix calcium chloride and sodium bicarbonate in a bag and observe the result
  2. Learn how to identify physical and chemical properties and changes
  3. Perform several experiments to find out what happens to mass during physical and chemical changes
  4. Use paper dots to represent particles in different types and state of matter as well as before and after changes
  5. Predict the amount of carbon dioxide gas released by burning fossil fuels.

Use "Contain Your Excitement" to answer questions such as:

  • How can you tell if a chemical reaction is happening?
  • What happens to particles during a chemical reaction?
  • What is the law of conservation of mass and what does it have to do with chemical reactions?
  • How are physical and chemical changes represented at a particle level?
  • How are fossil fuels related to the law of conservation of mass?

Our Contain Your Excitement kit is a part of the Science Unlocked Accelerate series and is recommended for grades 3-7.

Interested in learning more? Check out our Student Workbook Sample and Teacher Guide Sample 


More Information


This kit contains:


  • Alka-Seltzer tablets, pack of 2
  • Aluminum pie plate, 5"
  • Aluminum pie plate, 9"
  • Sodium bicarbonate (baking soda), 50 g
  • Bromothymol blue, 100 mL
  • Calcium chloride, 10 g
  • Drawing paper, 9" X 12"
  • Goggles, adult size
  • Lighter, long reach
  • Pipet, 3 mL
  • Plastic graduated cup, 8 fl. oz. (2)
  • Plastic vial, 10 mL
  • Plastic zip-close bag, 5" X 7" (2)
  • Salt packet, 0.6 g (4)
  • Spring scale, 100 g/1 N
  • Steel wool

You will also need:

  • Water
  • Oven or hot plate
  • Scissors


Shipping Restriction: Shipping Restriction: This item only ships Economy or UPS to a street address in the 50 US states.
Warning: HAZARDOUS CHEMICAL - This kit contains hazardous chemicals. Not for children under the age of 15. For use under adult supervision. Read warning labels carefully.
Warning: CHOKING HAZARD - Small parts. Not for children under 3 years. Adult supervision required.
My Science Perks

My Science Perks is FREE! Just place your order while logged in to your Home Science Tools account and you'll automatically earn up to 6% back when your order ships!

Learn More

Buy More & Save Build a Complete Curriculum

Bundle 3 Kits & Save 10%

Bundle 9 Kits & Save 20%

Reviews & Questions