When can a chemical reaction happen? Animation Play

Which line is steeper? Student activity Play

Which line is steeper? Animation Play

Who is faster and who is slower? Whiteboard exercise Play

Who is pulling whom Animation Play

Why some endothermic reactions are spontaneous? Animation Play

Why the temperature affects the reaction rate? Animation Play

Work and the time necessary to perform it – part 1 Student activity Play

Work and the time necessary to perform it – part 2 Student activity Play

Working with mixed numbers Student activity Play

Writing chemical equations using symbols and formulae Student activity Play

Writing on the computer Animation Play

Würtz reaction Animation Play

Yoko's and Lena's savings Student activity Play

Yoko's discovery Animation Play

Yoko's savings Whiteboard exercise Play

Zero-order reactions Whiteboard exercise Play

Zero-order reactions Student activity Play

β decay Whiteboard exercise Play