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Elementary
Types of levers
Principle of the lever
Quiz Lever
All you need to know about levers. How do levers work? Where is the fulcrum? Where are levers used in everyday life?
Decimal and Fractional Numbers
Whole numbers (Integers)
Number line quiz
Enjoy these three interactive number lines to support the teaching of integers, negative numbers, decimal and fractional numbers, and scales.
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Secondary
Rate of reaction
Observe how temperature and concentration affect the rate of a chemical reaction.
Corkscrew
The wing corskscrew is a wonderful technology product to study, isn't it?
RC Circuit - transient response
RL Circuit - transient response
Simulate the transient analysis of first order RC and RL circuits and see how the time constant affects the transient circuit response.
Esterification
Esters are formed through reactions between an acid and an alcohol. Let's review how to name esters.