Effect of reactant particle size on the rate of a chemical reaction Student activity Play

Effect of reactant pressure on the rate of a chemical reaction Student activity Play

Effect of reactant pressure on the rate of a chemical reaction Whiteboard exercise Play

Effect of temperature and catalyst on the reaction rate Whiteboard presentation Play

Effect of temperature and catalyst on the reaction rate Class activity Play

Effect of temperature increase on reaction rate at the molecular level Animation Play

Effect of temperature on the pressure of a gas Animation Play

Effect of temperature on the rate of chemical reaction Whiteboard exercise Play

Effect of temperature on the rate of chemical reaction Student activity Play

Effective rate Whiteboard exercise Play

Effective rate Student activity Play

Effects of physical factors on the rate of photosynthesis Slideshow Play

Energy flow and food chains Student activity Play

Energy flow and matter circulation Whiteboard exercise Play

Energy flow and matter circulation Student activity Play

Energy flow and the circulation of matter Whiteboard presentation Play

Energy flow and the circulation of matter Class activity Play

Energy flow through food chains Animation Play

Enzymatic reactions Student activity Play

Enzymatic reactions Whiteboard exercise Play

Evaporation and condensation Whiteboard presentation Play

Evaporation and condensation Class activity Play

Exchange of heat and temperature Animation Play

Experimental determination of a rate equation Animation Play

Factors affecting particles Animation Play