b) Variables for expt

c) Materials for expt

b) the material of the tray

c) ice, metal tray, ceramic tray, glass tray, stop watch

To be measured: The time taken for Lego man to float

To be kept: size of Lego man and height to drop Lego man

1 Plastic Bag small

1 Plastic Bag big

1 Lego Figure (volunteer)

4 Strings

If salt is added into the ice water then the temperature will increase.

To be changed: mass of salt

To be measured: temperature of the ice water

To be kept constant: amount of ice and volume of the water

Salt (4 tablespoon)

8 Ice cubes

2 Thermometer

2 Beaker

100ml of water for both beakers

b)Changed-Type of liquid used to watered the plant.

Measured-Time taken for the plant to grow

Constant- Location, Amount of sunlight, Volume of liquid and type of plant

c)Milk, Water, Seed, Soil and a Pot

b) To be changed: Type of sugar

To be measured: Time taken for the sugar to dissolve

To be kept constant: Volume of water used and amount of sugar used

c) - 2 Beaker

- Measuring cylinder

- Granulated sugar

- Icing sugar

- Water

- Spatula

- 2 stopwatch

If there is more vinegar added to baking soda, then the balloon used to measure the reaction will expand more.

1 measuring cylinders,

2 bottles (will bring)

1 weighing scale

1 pack of baking soda

1 bottle of vinegar

3 balloons

1 bowl/plate/beaker

b)

to be changed : vinegar

to be measured : size of balloon during the reaction

to be kept constant : amt of baking soda + the type of balloon

Shape of the ice cubes

To be mesured:

How long it takes for the ice to melt

To be kept constant:

The volume of water

-ice molds

-zipblock bags

-ice cubes

-measuring cylinder

-water bottle

to be measured: time taken

to be kept constant: number of ice cube

2 plate

2 ice cube

0.5g salt

1 stopwatch

To be measured : Time taken for the water to go into the glass cup until the candle burns out

To be kept constant : Volume of water in the large plate

What you'll need:

JAMIE GRILL

• One part white vinegar

• One part water

• Lemon rind

• Rosemary sprigs

Combine the above ingredients together, pour into a spray bottle, shake and then let infuse for a week before using. (For a different scent, you can also try orange rinds, cloves or cinnamon sticks). After a week, use the homemade all-purpose cleaner to remove hard water stains, clean trash cans, wipe away wall smudges and much more. Besides a fresh scent, the lemon rind may help boost cleaning power.

Spray two sprays of each cleaning solutions and wipe with a tissue paper ten times then put bread a each of the surface for 2 to 3 days and measure the amount of mould on each bread

2.add 4 ice cubes in each beaker

3.add 4 tablesppons of salt into only one beaker

4.wait 5 to 10 seconds

5.put both of the thermometer into both of the beakers and make sure they are up right

6.take the measurement of the thermometer and write it down

1. Measure 100ml of water in the measuring cylinder then pour it into each of the two beakers.

2. Add a spoon of icing sugar with the spatula into one beaker, then start the stopwatch.

3. Add a spoon of granulated sugar with the spatula into the other beaker, then start the stopwatch.

4. Stop the stopwatch and record the time taken for the sugar in each beaker to dissolve.

1. Pour 15ml of milk and 15 ml of water onto two pieces of cotton each.

2. Place a green bean on each piece of cotton.

3. Place them somewhere where there is warmth and oxygen.

4. Record the day when the green bean sprout.

take note of the timing