Topic 6 (Bubble Science)

 Topic 6

Task 1

Learning Goal and Outcome

1. Share your experiences and knowledge about bubbles

2. Understand the science of bubbles

3. Prepare bubble-making liquid and try out a range of bubble-making challenges

4. Be able to speak about the above.

• Wand

• Pocket of air

• It has 3 layers in a bubble

• You need soap to make bubbles

• Bubbles pop when touch

3 Bubbles Challenge

1. Bubble Caterpillar

2. Cube Shape Bubbles

3. Carousel Bubble 

Task 2:

Prepare bubble-making liquid following a tried-and-true recipe

Equipment: 

• a set of scales 

• 250ml beaker

• a calibrated syringe

• a stirring rod

Ingredients: 

• table sugar

• glycerol

• kitchen detergent

• Water

Method (what to do): 

• Fill the 250 ml beaker half full, that is, measure 125 mls water.

• Weigh 5 grams of sugar, stir into the water until the sugar is dissolved.

• Measure 3 mls of glycerol - add to the water solution.

• Measure 10 mls detergent - add to the water solution. 

• Stir the contents in the beaker so all ingredients are thoroughly mixed through.

Outcome:

It was hard  i had to blow light on the wand to make a good bubble.

     

Topic 5 (Flower Power)

 Topic 5

Task 1.

Your Learning Goal and Outcome

1. Know the parts of the flower and what functions(what they do and why)of each part

2. Be able to dissect a flower,arrange its parts and collate on an information sheet.

3. Complete a scientific diagram of a flower.

4. Be able to speak above the above

• Your thoughts about the flower 

• What you have noticed about flowers 

• What you know 

• Draw a cross sections of a flower

Task 2:

Aim:

To carefully dissect a Hibiscus flower and bud to identify collate the flower and bud parts.

Method:

First We took 2 pedals of the flower, got a knife and did a straight cut down the middle.Then seed the inner part of the flower.

Topic 4(STEM 2021 TECH)

 Topic 4:

Task 1:

Float: Light,Fly,on the surface of water.

Sink: Heavy, goes down,

Semi Float: Float and sink at same time.

What makes something float or sink?

Buoyancy: Float/sink.

Buoyant:Floats

Positively Buoyant.

Density:

The amount of Mass something has,relative to its volume.

Archimedes Principle:

Basketball has air so it can float.

Rolling ball has Mass so it will sink.

Task 2:

Float or Sink- Buoyancy Experiments

Aim or Purpose: Predict and test the buoyancy of objects

Equipment:

•   A variety of balls

• Marbles- large and small size

• Golf ball

• Table Tennis Ball

• Tennis Ball

Name of Object	Size-cms L-W-D	Weight	Composition	Prediction	Result
Tennis Ball	21cm	63.07	Fabric	Float
Marball	5cm	2.29	Glass	sink
Table Tennis	21.3cm	2.30	Glastic	Float
Golf Ball	15cm	35.15	Rubber	sink
Medium Marball	5.5	15.33	Glass	sink
Wood plank	10cm	20.18	Wood	sink
Wood cube	1cm	0.46	Wood	Semi Float
Small cube	1cm	0.46	Wood	Float
Medium Sqaure	14cm	111.73	Wood	Semi Float
Foam	7cm	0.42	Foam	Float
Cube	3.7	8.78	Plastic	Semi Float