B Barber
Science Coordinator
Partner Primary & Secondary Schools
John Paul, Nazareth, Padua, St John's Reg. Colleges & Partner Primary

Science
Middle Years Science Program - Mixing Colours Show

Middle Years Science Program

 
"Mixing Colours Show" (3-4)
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Program: St Francis Xavier.

Presentation:

Equipment:

  1. Test tubes; test tube rack; lead nitrate; potassium iodide; sulphuric acid; copper sulphate; methyl orange indicator; hydrochloric acid; sodium hydroxide; potassium iodide; barium chloride; potassium permanganate; and starch.
  2. 5 sets of filter paper strips; textas; water; beakers.
  3. NaOH; HCl; 2 types of indicators: phenophthalene and universal indicator.
  4. 3 syringes with sand, water and air.
  5. Water, detergent & glycerine mixture, basin, wire ring (make one).
  6. Red-clear conical flask non-mix ing mixtures.
  7. Basin, water, detergent, cardboard boat, eye dropper.
  8. Corn flour and water
Task
Method
Equipment
Footy Colours
Mixing the combinations of chemicals to produce the different colours.

Team

A/B

Substances mixed

Tigers

A

20 drops leads nitrate and 10 drops potassium iodide

B

10 drops starch and 10 drops of iodine

Bulldogs

A

20 drops lead nitrate and 10 drops sulphuric acid

B

5 drops methyl orange and 5 drops hydrochloric acid

Falcons?

A

10 drops copper sulphate and sodium hydroxide

B

10 drops hydrochloric acid and 50 drops methyl orange

Sharks?

A

20 drops copper sulphate and 10 drops sodium hydroxide

B

10 drops barium chloride and 10 drops sodium sulphate

Lions

A

10 drops potassium iodide and 10 drops lead nitrate

B

10 drops hydrochloric acid, 3 drops methyl orange and 3 drops potassium permanganate

Demons

A

10 drops hydrochloric acid and 5 drops methyl orange

B

10 drops starch and 10 drops lead nitrate

Test tubes; test tube rack; lead nitrate; potassium iodide; sulphuric acid; copper sulphate; methyl orange indicator; hydrochloric acid; sodium hydroxide; potassium iodide; barium chloride; potassium permanganate; and starch.
Slippery Ink Chromatography Discussion of chromatography. 5 sets of filter paper strips; textas; water; beakers
Properties of acids & bases Mix NaOH and HCl with 2 types of indicators: phenophthalene and universal indicator. Discussion of properties of acids and bases. NaOH; HCl; 2 types of indicators: phenophthalene and universal indicator.
Syringe Solids Hold down the end and compress the plunger to observe the ease of compression.    3 syringes with sand, water and air
Bubbly bubbles Surface tension Blow bubbles. Is it a liquid or gas? Water, detergent & glycerine mixture, basin, wire ring (make one).
Mixing chemicals Show the red-clear conical flask non-mix ing mixtures. Discuss water-type and oil-type mixtures. Red-clear conical flask non-mix ing mixtures.
Boat racers Surface tension Dropper detergent into the back of boat and watch it fly. basin, water, detergent, cardboard boat, eye dropper.
Oobleck Viscosity Mixing corn flour and water. corn flour and water
Kitchen talk Mixing & cooking Discussion of cooking procedures in the kitchen: (pantomime) cooking eggs; boiling water; making a drink of cordial. Why do we heat chemicals? -