How Dew is Caused
We all have had the experience of getting our feet wet by walking in the grass early on a summer morning. This moisture upon the grass is called dew. What are some of the things that you know about dew? Was it on the grass during the day before? About what time [...]
How Rain, Snow, and Hail are Formed
In a cloud or a fog the water particles are so small that they will remain suspended in the air for a long time. The small globules of water in a cloud are either prevented from falling below the base of the cloud by upward currents of air, [...]
What Causes Iron to Rust?
This question may be answered by performing the following experiment.
Iron Rust Science Project Experiment I
Put into a test tube a small quantity of iron filings and a few drops of water. Move the test tube around until the moist iron filings form a layer sticking to the inside of [...]
Materials Needed
plastic tray or plate, plastic wrap
paper towel, water
package of radish seeds
microwave oven
ruler, pencil, graph paper
General Laboratory Question
What is the effect of increasing exposure times of microwave radiation on radish seed germination? What is the effect of increasing exposure times of microwave radiation on radish seed sprout length?
Part 1.
Form a hypothesis
1. Consider the [...]
Difficulty:
Objective
The goal of this project is to use a homemade single-beam balance to directly measure the surface tension of a liquid.
Introduction
In this experiment, you will be making and using a single beam balance to measure the force exerted by surface tension on a needle, floating on the surface of the water. The needle will be [...]
