Bubble gum Experiment

Which one makes the best bubbles?

Chewing gum experiment

You will be in groups of 3 students to test the which gum is the best for bubble, stretch and taste.

Aim: To see which bubble gum makes the best Bubbles, has the best elasticity and keeps its taste for the longest.

Hypothesis: I think that the ? will make the largest bubble and have the longest stretch. The ? will have the longest taste.

Equipment:

• 3 different chewing gum brands
• stop watch
• ruler
• graph to record detail.

Method:

1. Place the first piece of chewing gum in your mouth and time how long it takes to keep its taste.
2. Chew the gum and record this time on the chart.
3. Using the same piece of gum blow a bubble. Record on the chart as 'no bubble', 'small', 'medium', 'large'.
4. Test for elasticity. Keep all of the gum in your mouth and see how long you can stretch it. Measure it and record its length.

Findings:

Hubba bubba lasted for 1 minute and 33 seconds. it is a medium bubble size. and stretches for about 48 cm

Extra lasted 48 seceonds and is a small bubble gum size with 40 cm

Pk lasted 1 minute and 44 second it is a small bubble gum size with 65 cm

Type of gum	Taste	Bubble size	Length
Hubba-bubba	1.33	Medium	48 cm
Extra	48 seconds	Small	40 cm
PK	1. 44	Small	65 cm

Summary: The PK bubble gum lasted 1.44 minute and seconds has a small size bubble gum and the length is 65 cm

Conclusion: The Pk bubble gum is the best bubble gum to buy in the shop

2017 Blog Post

Welcome to my blog 2017 this will be shown in my everyday life spending my life at Hornby High School, learn, create and share.

Bouncy Ball

Bouncing Balls

Aim:
I want to find out if there is a relationship between how high a ball is dropped from and how high it bounces up.

Hypothesis:
I predict that the higher the ball is dropped from, the higher it bounces.

Method:
The equipment that I will need is:

• Bouncy ball
• Ruler
• Stand with boss head and clamp

1. Attach the clamp to the stand.
2. Clamp the ruler onto the stand so that the zero mark is on the ground.
3. Hold the bottom of the ball on 50cm and drop.
4. Record the height of the bounce measuring the bottom of the ball.
5. Repeat the experiment twice more and record the average measurement.
6. Repeat the whole experiment using heights of 60cm, 70cm, 80cm, 90cm, 100cm

                                      
Variables:

Independent (changing) Variable = The height of the drop
Dependent (measured) Variable = The height of the bounce

Results:

Height of drop	Height of bounce on carpet	Height of Bounce of tarsal
80 cm	31 cm	35 cm
90 cm	31 cm	44 cm
100 cm	39 cm	47 cm

Findings:

1.At 80 cm the ball bounce at 31 cm on carpet and the other ball bounce at 35 cm on tarsal.

2.At 90 cm the ball bounce at 31 cm on carpet and the other ball bounce at 44 cm on tarsal.

3.At 100 cm the ball bounce at 39 cm on carpet and the other ball bounce at 47 cm on tarsal. 

Discussion:

Conclusion: When the ball was drop on 100 cm in the carpet the ball bounce 39 cm and in the tarsal the ball bounce 47 cm.

Evaluation:

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9.

10.