# What is the purpose of the lava lamp experiment?

## What is the purpose of the lava lamp experiment?

Objectives: In this experiment, you will see how density and polarity, when they are powered by the release of a gas, cause a reaction between oil and water.

### What is the conclusion of lava lamp?

Since water is denser than oil, it sank to the bottom leaving the oil on top. Real lava lamps contain a light bulb at the bottom. The light bulb is the lava lamp’s source of heat. The heat caused by the lamp causes the denser liquid to float on top creating the “lava lamp effect”.

#### What is the hypothesis for a lava lamp?

The lava lamp science project hypothesis talks about the density of two liquids and the solubility of the two same liquids. In the lava lamp, we have liquids that are very close to each other in density and are insoluble in each other.

How do you make a lava lamp experiment?

What You Do:

1. Fill the flask most of the way with your choice of oil.
2. Fill the rest of the flask with water.
3. Add a few drops of food coloring; your choice of color.
4. Break an Alka-seltzer tablet into a few small pieces, and drop them in the flask one at a time.
5. Watch your lava lamp erupt into activity!

What is the independent variable in a lava lamp experiment?

INDEPENDENT VARIABLE- The temperature of the water. DEPENDENT VARIABLE- We are measuring how well the lava lamp works. CONSTANTS- The amount of water, oil, and salt put in the the container will be about the same. CONTROL GROUP- The control group will be hot lava lamp.

## What is the dependent variable in lava lamp experiment?

Hypothesis and Variables INDEPENDENT VARIABLE- The temperature of the water. DEPENDENT VARIABLE- We are measuring how well the lava lamp works. CONSTANTS- The amount of water, oil, and salt put in the the container will be about the same.

### Why is a lava lamp a chemical reaction?

This endothermic chemical reaction creates carbon dioxide as well as causes the glass to cool noticeably. As the carbon dioxide bubbles rise toward the surface, little globs of colored water stick to the bubbles creating the lava lamp effect.

#### What is the variable for lava lamp experiment?

Hypothesis and Variables If the water is hot, then the lava lamp will work better. INDEPENDENT VARIABLE- The temperature of the water. DEPENDENT VARIABLE- We are measuring how well the lava lamp works. CONSTANTS- The amount of water, oil, and salt put in the the container will be about the same.

What are the variables in making a lava lamp?

What is the chemical reaction in a homemade lava lamp?

When the mixture is poured into the glass, it sinks to the bottom and the chemical reaction occurs between the baking soda and vinegar. This endothermic chemical reaction creates carbon dioxide as well as causes the glass to cool noticeably.

## How is heat transferred in a lava lamp?

As the glass heats up, some of its heat is transferred to the wax by conduction. Conduction is heat transfer between two objects that are touching each other. As the wax heats up it begins to melt and become less dense than the surrounding oil. This change in density causes the melted wax to rise.