# Changing Surface Area

11SCI - Chemical Tūhura

2020

## Investigating a Change in Surface Area

• To measure the effect of surface area on the rate of reaction
• To consider fair testing and accuracy in my method
• To justify why increasing the surface area increases the rate of reaction

## Increasing Surface Area in Calcium Carbonate

To increase the surface area of calcium carbonate we can use smaller chips and even crush it into a powder.

# Reaction of Calcium Carbonate and $$HCl$$

• On Tuesday you will be reacting these chemicals together.
• Calcium carbonate is a white solid and $$HCl$$ a clear liquid.
• Measure the time until the calcium carbonate has dissolved.