A model dam can be made from a few items normally already found in the kitchen. Use a Tupperware of similar plastic container, some sand, rocks and water to create a model of a structure that retains water.Know More
To make a model dam, PBS Kids recommends placing sand in the plastic container and digging a trench in the sand that resembles the shape of a flowing river. Pick a point along the trench to build the dam. Place small rocks on it and enclose them with Popsicle sticks that stand upright. Pour a little water down the trench to start the river to see if the dam is constructed well enough to withstand the flow but still allow some water to enter the structure.
Dams are sometimes associated with levees or floodgates. Both are used to control water flow. But levees are designed to prevent water from flowing into regions. The purpose of a dam is to retain water that may also be transferred to other locations. In addition to water retention, dams can help generate electricity with the help of hydro power.
Natural causes and wildlife such as beavers help form dams. Dams can also be man-made. Man-made dams are classified by several factors, including size, height, structure and purpose.Learn more in Electricity
An electrically charged object is made from atoms that do not contain an equal number of electrons and protons, giving them a positive or negative charge, while an electrically polarized object is made from atoms that have a neutral charge but the electrons and protons have changed their orientation within each atom. Electrically charged atoms are referred to as ions.Full Answer >
To make a solenoid, you need a hollow cylinder, a battery and lots of conducting wire. The wire must be wound dozens of times around the cylinder, with both ends connected to a battery. This allows the current to flow, replicating the effect of a bar magnet.Full Answer >
There are many ways to make static electricity. To create a small amount of static electricity a person can develop a static charge by rubbing a glass rod with a silk cloth or amber against wool. The static charge will allow the glass and the amber to attract small amounts of paper and plastic.Full Answer >
According to the crafting and decorating website Primitive Crafting, the items required to make silicone-dipped bulbs are a tube of clear silicone caulk, a caulking gun, a disposable small plastic cup, a Popsicle stick, ground cinnamon, ornament hooks, 4 to 7-watt night light bulbs, disposable gloves and a string or clothesline. Ensure that the caulk is 100 percent silicone.Full Answer >