This document describes an experiment to create "blobs in a bottle". The materials needed are a clear bottle, water, vegetable oil, food coloring, and fizzing tablets. The steps involve pouring water into the bottle, adding oil on top so it doesn't mix with the water, putting in food coloring, and dropping in half a fizzing tablet. This causes colored blobs to rise up from the bottom of the bottle due to gas bubbles forming from the dissolving tablet. Some hypotheses tested are that hotter water causes a faster reaction, bottle size doesn't affect blob amount, and using more tablet pieces produces more blobs.

1. We are going to present our experiment.
We hope you ‘d like it.
Play attention and have fun.
BLOBS IN A
BOTTLE

2. MATERIALS:
1- A clean 1 liter clear
bottle.
2- ¾ cup of water
3- Vegetable oil
4- Fizzing tablets
5- Food coloring

3. STEP 1
1- Pour the water into
the bottle.

4. STEP 2
2- Use a funnel to pour
the vegetable oil into
the bottle until it is
almost full.

5. STEP 3
Add 10 drops of food
coloring to the bottle (we like
red, but any color will look
great.). The drops will pass
through the oil and then mix
with the water below.

6. STEP 4
4- Break a tablet in half
and drop the half tablet
into the bottle. Watch it
sink to the bottom and
let the blobby greatness
begin!

7. STEP 5
5-To keep the effect
going, just add
another tablet piece.

8. STEP 6
6-For a true lava lamp
effect,shine a
flashlight through the
bottom of the bottle.

9. HOW DOES IT WORK?
To begin, the oil stays above
the water because the oil is
lighter than the water, or the
water is more dense. The oil
and water do not mix
because of something called
“intermolecular polarity”.

10. HOW DOES IT WORK?
Water molecules are
attracted to other water
molecules.
Oil molecules are attracted to
other oil molecules.
The structures of two
molecules (water and oil)can
not mix together.

11. When you added the tablet
piece, it sank to the bottom and
started dissolving and creating a
gas. As the gas bubbles rose,
they took some of colored water
with them. When the blob of
water reached the top, the gas
escaped and down went the
water.
HOW DOES IT WORK?

12. HYPOTHESIS 1
Does the temperature of
the water effect the
reaction?
Yes, with hot water the
reaction is faster.
ho cold

13. HYPOTHESIS 2
Does the size of the bottle
affect how many blobs
are produced?
The amount of blobs
is similar.

14. HYPOTHESIS 3
Does the effect still work if
the cap is put on the bottle?
-The effect stops slowly
and the bottle changes
the form.

15. HYPOTHESIS 4
Does the size of the tablet
piece affect the
number of blobs created?
With more tablets more
blobs are produced.