science experiments.

2009-09-04T06:46:00.000-07:00

WE ARE DONE with our science experiment (:

HAHA ..

FINALLY ! (:

1st step : We cut the fruits and squeeze out all the juice from the fruits (:

2nd step: LET'S CHECK OUT THE AMOUNT OF ACID between sweeettt fruits and sour fruits (:

WE WILL NEED A ...... PH METRE (:

TIME FOR MEASURING !

1) ORANGE(: PH:+3.44

2) WATERMELON(: PH:+6.35

3) HONEYDEW (: PH:+5.18

4) LEMON (: PH : +2.60

5)PAPAYA(: PH:+5.22

So now , can u see the difference between the sweet fruits and the sour fruits ?

the lower the PH the sour the fruit is .. the higher it is the sweeter it is.

so now can u tell that among the 5 fruits , lemon is the most sour ?

Orange:+3.44

Watermelon:+6.35

Honeydew:+5.18

Lemon:+2.60

Papaya:+5.22

FINISH ~~~~~ (: haha ...

DONE BY : US (:

2009-06-29T20:46:00.000-07:00

YO !
we will be doing a science project given by our teacher : MR THOMSY LAND !!!
TITLE : The amount of acids in fruits (:

Group Name: 2A girls Class: 2A

Name of Members and Signatures:
1) Yuan Min
2) Joy
3) Tracy
4) Liana

Project Title:

How does the amount of acid differ between sweet fruits and sour fruits?

Problem Question:

What acid are we suppose to use ?

Hypothesis:

The taste and the colour will change between this 2 fruits.

Expected date of research completion:

Project Mentor and Signature: Mr Thomas

Apparatus and Materials Needed:

1. weighing scale
2. plastic plate
3. plastic bags
4. knife
5. citric acid and hydrochloric acid
6. lime/ lemon ( sour fruits)
7. honeydew ( sweet fruits)

Experimental Procedure Setup:

1. cut both sweet and sour fruits
2. put them on the plastic plate ( prepare 2 set of fruits on the plate )
3. throw the remaining in the plastic bags
4. pour the citric acid on 1st set of different fruit
5. pour the hydrochloric acid on the 2nd set of different fruit
6. WAIT
7. measure each fruit’s weight and note down the weight ( see if there’s any changes)
8. clarify the colour between all fruits
9. smell the fruits if there’s any changes
10. The end !!!

hello.

2009-05-21T22:34:00.000-07:00

group: 2A girls.
group members: yuan min,liana,joy and tracy.
netball,silat and bowling.