Converting Mass to Amount
In this mass worksheet, students determine the number of moles from a given molar mass and volume being sure that they use the correct conversion factors. This worksheet has 12 problems to solve.
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New Review The Difference Between Mass and Weight
Why is it difficult to push a car? The video, produced by Veritasium, challenges people to answer this question scientifically. Then, a discussion of weight versus mass follows. Finally, it presents an answer and explanation highlighting...
3 mins 9th - 12th Science CCSS: Adaptable
Stoichiometry: Chemistry for Massive Creatures
Moles exist in chemistry? These are not animals that live underground and dig through your gardens — they are quantities of elements. Learn about moles and how they help chemists determine amounts of substances (from atomic mass to grams).
13 mins 9th - 12th Science CCSS: Adaptable
Understanding Atomic Number and Atomic Mass
The amount of information you can learn about an element from the periodic table is amazing! Young scientists learn how to interpret the atomic number and atomic mass. Using a carbon atom as an example, the instructor describes the...
2 mins 9th - 12th Science
The Law of Conservation of Mass
This short video simply explains the Conservation of Mass with graphics that show the atoms being conserved in pictures of balanced equations. The connection between mass and energy is explained and Einstein's energy equation is mentioned.
5 mins 7th - 12th Science CCSS: Adaptable