Hydrogen peroxide and catalase using different pH :
Conical flask (For different pH 2-4-7-9-12) and bungs
Delivery tubing to collect gas underwater 2B4
50cc measuring cylinder
Plastic container (ice cream boxes)
stand clamps and bosses.
Potatoes chips
Hydrogen Peroxide & catalase using different temperatures:
Set up as per pH beehive gas collection (see top of page).
Water baths x 2 set at 40 degrees & 80 degrees/ice bucket (large glass bowl)/room temperature (no need for water bath, just leave out)
Conical flasks with bungs filled with 10ml of 20V (6%) Hydrogen Peroxide prior to lesson and placed into different temperature baths/bowls.
Potato chips/chunks in small beakers (equal number of chips to be put into each flask to make it a fair test).
Spatula or tweezers for putting potato pieces into conical flasks.