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Borax Beads
Related topic – Transition Metals
Equipment

Cobalt chloride / sulphate solution
Copper Chloride /sulphate Solution
Nickel Chloride /sulphate Solution
Chrome Chloride /sulphate Solution
Iron II Sulphate Solution
Iron III Sulphate Solution
Manganese Chloride / Sulphate Solution
Borax (Solid)
12cm Lengths of Nicrome Wire
Bunson Burner
Heat Mat

• Make a small Loop on one end of the nichrome wire.
• Turn on Bunsen burner to a hot flame.
• Dip the wire loop into one of the solutions then into the Borax solid.
• Carefully heat the loop in the flame of the Bunsen burner until the Borax melts.
• Repeat until a small coloured bead has formed in the loop of the wire.
• Leave to cool then carefully remove the bead from the wire.

Joanne Beever
Penistone Grammar School

Make Your Own Ice Cream

You will need:

• Small carton of double cream (142ml)
• Sugar
• Dessert spoon
• Vanilla essence
• Water
• Ice
• Salt
• 2 Small Ziploc freezer bags
• 1 Large Ziploc freezer bag
• Elastic band
• Tea Towel
• Carrier bag

What to do:

1. Check the bags for holes! If the bag leaks there will be a terrible mess.
2. Pour the carton of double cream into the smaller of the Ziplock bags; add a dessertspoonful of sugar and a teaspoonful of vanilla essence.
3. Close the bag and shake it a bit to mix the ingredients.
4. Open the bag and pour a little of the mixture into a small bowl.  Reseal the bag, and for extra mess-proofing twist the opening and seal with an elastic band.  Put this bowl of mixture into the freezer.  Let it sit undisturbed as it freezes.  Let’s call this sample A.
5. Add enough ice to fill the larger bag about half full and then sprinkle a handful of salt onto the ice.  Place the bag of mixture inside in side this larger bag and seal.
6. Wrap the large bag in a tea towel and place it in a carrier bag.  Tie the carrier bag handles together so that you have an easy-to-handle ‘parcel’.
7. Now: shake shake shake. Shake the bag and toss it from hand to hand for about 20 minutes. Get volunteers to help you with this….
8. After it’s well frozen, open the large bag and pour out the ice and salt water. Open the small bag – this is sample B. Use a spoon to taste your results.

YUM!

Wendy Mcintosh
Newsome High School and Sports College

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