Science Design Team
Your mission is to design a project that the class can do to gain understanding of how water and land interact to form the Earth as we know it. Please read the following experiment carefully and decide how the class can work together to perform the experiment.
Watch the video after reading this experiment, and design an experiment the class can perform. Make your directions as clear and easy to follow as you can. Present the experiment to the class in the form of a PowerPoint.
Demonstrating Water Erosion Of Land Masses
Water has power! It has the power to shape the surface of the Earth. Water can change one landform by washing away sediment and then depositing it somewhere else to create a new landform.
How are new landforms created through erosion and deposition?
Deep baking dish or pan Book
- Start by pouring sand, dirt, and gravel in layers at one end of the dish. This is your “landform.” Use your hand to smooth the land. Leave the other end of the dish empty.
- Dip your fingers into the water and slowly drip water over the land. Repeat this until the land is wet. What do you observe about the water that falls on the dry land? Record your observation.
3. Slightly pick up on the end of the dish with the land in it. Place a book under that end.
4. Use a pencil tip to poke a tiny hole in the bottom of a paper cup. Hold the cup above the land. Slowly pour water into the cup and watch what happens to the land while the water drains onto it. Observe what is happening to both the land and the water.
5. Once the water has stopped draining, record your observations and include a drawing of your land’s new form.
6. Add another book under the land end of the dish. Repeat the water draining activity. Observe what occurred with the land and water this time. Record your observations including a drawing.
Our science design team came up with a great experiment to prove that the chemical electrical energy found in fruit could be used to power an electrical appliance. They visited a website that taught them how to construct a lemon/battery. They used it to power a calculator that had its battery and solar panel removed. They designed the experiment and the step by step directions around a series of questions that drove their inquiry. The entire class helped put the circuit together. On our first attempt, it did not work.
On the second attempt, the calculator came on, and you could do complex math with it. We learned the value of failure as success training, while we were learning about the directional flow of electric currents. It even worked with cucumbers!