Science Experiment Project

Proposal Assignment

Kendra Underwood

EDUC 634

Liberty University

Homemade Lava Lamp

Experiment/Investigation Plan:

· For this experiment I am looking to explore the relationship between oil and water. I want to come to terms with its density and its compounds.

· In this experiment we will also observe the chemical reaction of an acid and base.

Problem/Question:

1. How do you think the plastic bottle will feel once you add water to it?

2. Do you think the water will instantly change colors once you add the food coloring?

3. What do you think will happen to the water or food coloring when you add the Alka-Seltzer?

4. Once all the products are in the bottle would you shake twisting or turn it upside down to get a reaction?

Literature Review:

· Oil and water do not blend since they cannot shape any compound bonds with one another. Water is comprised of profoundly charged, hydrophilic mixtures (or “water cherishing”) while oil is comprised of long chains of carbon that are hydrophobic (“frightened of water”). The long chains of carbon that make up oils do not convey a charge and are not drawn to the water particles. This causes the division we find in this analysis just as in our kitchen sinks and maritime oil slicks. Besides, the oil will drift on top of the water since it is less thick than oil.

·

· Alka-Seltzer is in fact both acidic and fundamental. The tablets contain sodium bicarbonate (a base) and citrus extract (a corrosive) which, when blended in with water, respond with one another and produce foaming carbon dioxide. This makes the air pockets you see inside the hued liquid in the soft drink bottle.

Hypothesis:

The hypothesis is once you mix all these substances together it would give us some time of lava lamp effect. The Alka-Seltzer will cause the oil to move freely throughout the water. The Alka-Seltzer is the key component to the lava lamp effect once it starts to fizz the oil will move freely to create the lava lamp effect.

Variables:

What is the independent variable in a lava lamp experiment? The independent variable would be the Alka-Seltzer tablets. The control of this experiment is the food coloring because it stays the same throughout the whole experiment.

Materials:

· 1 clean, plastic soda bottle with cap*

· Vegetable oil

· 1 Alka-Seltzer tablet for a 16 oz soda bottle or 2 tablets for per liter bottle

· Food coloring

· Water

Plan/Procedure:

1. Accumulate materials over a surface that can’t be harmed by oil or can be cleaned off. Another great alternative is to cover a table with old papers.

2. Fill the plastic jug ¾ full with vegetable oil.

3. Add water to the neck of the jug, leaving a little space between the water line and the highest point of the compartment. (You can generally add more water sometime in the not too distant future.)

4. Settle on a shading for your ‘astro light’ bottle. Select the food shading appropriately.

5. Add at least 10 drops of food shading to the container until a rich tone is seen.

6. Break the Alka-Seltzer tablet into more modest pieces (6 to 8). Add each piece in turn noticing every response.

7. At the point when the foaming stops supplant the jug cap.

8. Tip the container to and fro and notice the response. Tip, contort, and shake the container in various ways. Notice the responses and take notes.

Reference: