If modern civilization fails, one of the first pieces of equipment required to bring mankind back from the stone age will be the means to forge and form metal tools. To do this requires a forge or a foundry.
In a wilderness survival situation, clay can be used to construct bowels, cups, ovenware, and other utensils. It is especially useful when the need for a waterproof container arises.
With this experiment we’ll cause marshmallows to make funny faces and demonstrate a scien-terrific principle called pressure.
Plants are living creatures. They need food and water just like people. But how do plants get food?
Funny how we take everyday activities for granted. Take for instance – sucking through a straw. Have you ever stopped to think about how we are able to suck liquids through a straw? What exactly makes the liquid climb up the straw and into our mouths? Well, we know you’re just itching to know so…
Pascal’s law has many practical applications, including hydraulic lifts, brakes, and jacks. It is also used in many industrial and manufacturing processes, such as in the production of plastics, metals, and chemicals. Here we will demonstrate Pascal’s law with a pen cap and plastic bottle.
When a person stretches out flat, more water pushes against them because their body is spread out more, which creates more upward force and causes them to float. Conversely, when they curl up into a ball, less water is pushing against them, which reduces the upward force and makes them sink. Want to test this…