Science Laboratory Rules Educational Presentation in Blue and White Hand Drawn Style.pdf.pdf

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1. CHEMICAL
REACTION
“The Dancing Raisins” and
“The Fireworks In A Jar”
Group 2

2. Cognitive Objective Explain the
scientific principles behind
buoyancy and gas behavior in
liquids by analyzing how carbon
dioxide bubbles affect the
movement of raisins in carbonated
soda.
DANCING RAISINS
At the end of the discussion, students should be able to:
Psychomotor Objective
Perform the "Dancing
Raisins" experiment by
carefully following the steps,
including dropping raisins
into the soda and observing
their movement.
Affective Objective Appreciate
the wonders of science and
experimentation by
demonstrating curiosity and
enthusiasm in observing and
discussing the effects of gas
bubbles on object movement.
1 2 3

3. MATERIALS NEEDED
A clear glass or
transparent cup
Carbonated soda (Sprite,
7UP, or club soda)
A handful of raisins
(small and lightweight
ones work best)

4. PROCEDURES

5. STEP 1
Set Up the
Experiment:
- Fill a clear glass
about three-fourths
full of carbonated
soda.

6. STEP 2
Drop the Raisins:
- Carefully drop a few
raisins into the soda.

7. STEP 3
Observe the Dancing Effect:
- Watch as the raisins sink to
the bottom.
- After a few seconds, bubbles
will attach to the surface of the
raisins, making them rise to the
top.
- Once the bubbles pop at the
surface, the raisins will sink again,
repeating the cycle.

8. EXPLANATION
The carbonated soda contains dissolved carbon
dioxide gas, which forms bubbles that cling to the
raisins. These bubbles increase the buoyancy of the
raisins, causing them to rise. When the bubbles reach
the surface and burst, the gas escapes, making the
raisins sink again. This process continues until the
soda loses its carbonation.

9. DISCUSSION POINTS
- Why do the raisins initially sink?
- How do gas bubbles help the
raisins float?
- What happens if you try the
experiment with other small
objects like corn kernels or pasta?

10. THANK YOU!
This activity is a fun and
simple way to explore
concepts of buoyancy,
density, and gas
behavior in liquids.

11. Cognitive Objective Explain
the scientific principles of
density, solubility, and
immiscibility by analyzing how
oil, water, and food coloring
interact to create the fireworks
effect.
FIREWORKS IN A JAR
At the end of the discussion, students should be able to:
Psychomotor Objective
Demonstrate the experiment
by carefully preparing the oil
and food coloring mixture,
pouring it into the water, and
observing the reaction.
Affective Objective Develop an
appreciation for scientific
exploration by expressing
excitement and curiosity about
the visually engaging
interaction of different liquids.
1 2 3

12. MATERIALS NEEDED
- A clear glass jar or tall
transparent cup
- Warm water
- Cooking oil (vegetable oil
or baby oil)
- Food coloring (multiple
colors)
- A small cup or bowl
- A fork or spoon

13. PROCEDURES

14. Prepare the Oil and Food
Coloring Mixture
- Fill a small cup with about 3
tablespoons of cooking oil.
- Add a few drops of different
food coloring into the oil.
- Stir gently with a fork or
spoon to slightly break up the
food coloring drops.
STEP 1

15. STEP 2
Set Up the Experiment
- Fill a clear glass jar
about ¾ full with warm
water.
- Slowly pour the oil
and food coloring
mixture into the jar of
water.

16. STEP 3
Observe the Fireworks Effect

- Watch as the food coloring
droplets begin to sink and
spread into the water.
- The colors will swirl and
expand, resembling small
bursts of fireworks in the jar.

17. EXPLANATION
Oil and water do not mix because they
have different densities and polarities—oil
is less dense and hydrophobic (does not
dissolve in water), so it stays on top. Food
coloring, however, is water-based,
meaning it does not dissolve in oil. Once
the food coloring droplets reach the
water, they sink and start to mix, creating
a beautiful display of colorful "fireworks."

18. DISCUSSION POINTS
- Why does the oil stay on top of
the water?
- Why does food coloring mix
with water but not with oil?
- What other liquids might have
similar immiscibility effects?

19. THIS SIMPLE YET VISUALLY STUNNING
EXPERIMENT HELPS STUDENTS EXPLORE
THE CONCEPTS OF LIQUID DENSITY,
SOLUBILITY, AND IMMISCIBILITY IN A FUN
AND ENGAGING WAY.

20. THANK YOU
FOR
LISTENING!