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"Heating Chemicals Science Shows"
(Grade P-2)
Return to Science Shows
Program:
St Francis Xavier.
Presentation: Equipment:
Heating Chemicals :
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3
syringes with sand, water and air. -
3
measuring cylinders, 3 ball bearings, oil, water. -
Water,
detergent & glycerine mixture, basin, wire ring (make one). -
Measuring
cylinder, large rock, 1 large and small beakers, and measuring cups. -
measuring
cylinder or beaker with water in it. -
basin,
water, detergent, cardboard boat, eye dropper. -
Kettle,
water, thermometer. -
Can of soft
drink, towel and paper towel. -
Plastic
drink bottle, boiling water and balloon. -
2
straws, string, 2 balloons, pin. -
3
aluminium cans, water, 3 lamps, 2 insulating materials. -
3-4
identical volume cubes: wood, aluminium and brass, electronic scales -
3-4
identical volume cubes: wood, aluminium and brass in hot water. -
3
spring balances, 3 beakers of oil, water and air. 1 weight.
corn flour, water.
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dry
ice, paper towel.
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| Activity |
Type
of chemistry | Demonstration |
Equipment |
| Syringe
Solids | Compression | Hold
down the end and compress the plunger to observe the ease of compression. | 3
syringes with sand, water and air | | Losing
your bearing | Viscosity | Fill
3 measuring cylinders with oil and water. Drop 3 ball bearings simultaneously
(by 3 volunteers) to test viscosity. | 3
measuring cylinders, 3 ball bearings, oil, water. |
| Bubbly
bubbles | Surface
tension | Blow
bubbles. Is it a liquid or gas? | Water,
detergent & glycerine mixture, basin, wire ring (make one). |
| Irregular
shapes | Measuring
volume | Use
displacement of liquids using 2 beakers to find volume of rock. Use measuring
cylinder to do the same. | Measuring
cylinder, large rock, 1 large and small beakers, and measuring cups. |
| Meniscus | Surface
tension | Observe
the meniscus. | measuring
cylinder or beaker with water in it. | | Boat
racers | Surface
tension | Dropper
detergent into the back of boat and watch it fly. | basin,
water, detergent, cardboard boat, eye dropper. |
| Lets
boil water | Boiling
point | Measure
the temperature of water every minute as it boils and graph temperature versus
time. Maximum temperature of 100 degrees celsius. | Kettle,
water, thermometer | | Sweating
soft drink | Condensation | Dry
the outside of soft drink with towel. After a few minutes use the paper towel
to observe condensation of moisture in air on the can. | Can
of soft drink, towel and paper towel. | | Blowing
up bottles | Expansion
of gases | Pour
hot water into an empty plastic drink bottle and cover with a balloon. Watch the
expansion of balloon. | Plastic
drink bottle, boiling water and balloon. | | Weight
of air | Gas
has weight | Connect
2 inflated balloons by string to 2 ends of the straw. Balance the straw on your
finger and mark the point. Pop one and watch one end fall. | 2
straws, string, 2 balloons, pin. | | Hot
can Cold can | Insulation | Set
up 3 lamps on 3 cans of water with one control and 2 insulated cans. Watch the
changes in temperatures. | 3
aluminium cans, water, 3 lamps, 2 insulating materials. |
| Heavy
metal | Densities | Measure
the mass of 3 different identical sized cubes. | 3-4
identical volume cubes: wood, aluminium and brass, electronic scales |
| Hot
metal | Conductivity | Place
3 identical cubes into hot water. Which is hotter? | 3-4
identical volume cubes: wood, aluminium and brass in hot water. |
| Weight
in liquid |
Buoyancy | Measure
the weight of an identical weight suspended in oil, water or just air. | 3
spring balances, 3 beakers of oil, water and air. 1 weight |
| Dry ice |
Sublimation |
Place a piece of dry ice onto paper towel and watch it dissappear and not turn to liquid. |
dry ice, paper towel. |
| 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? |
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| Ice to Steam |
Change of state |
Heat ice and turn it to steam. |
ice, beaker, hot plate |
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