The purpose of this project is to test sunscreens from the lowest number to the highest.People depend on sunscreen to protect their skin from the sun’s ultraviolet radiation.People believe that a high ...
Surface tension is a property of liquids. Liquids have a limited ability – called surface tension - to resist an external force. For example, when a liquid forms a lens-shaped meniscus in a gradeuated ...
Though it is common knowledge that the average temperature increases as you move closer to the equator, many people do not understand why this is so. There are many reasons why the equatorial region e ...
Most plastics are not readily biodegradeable, especially when buried in the ground away from sources of oxygen. Many can be decomposed partially by photodecomposition in the presence of sunlight, howe ...
When we look around, we do not typically see ‘air’ so it is easy to assume that our air is clean. In reality, our atmosphere is made up of mostly invisible gases. Additionally, most air pollutants are ...
Bottled water has become popular as seen in the wide selections of brands available in stores and bottled water vending machines. Some bottled waters claim to promote health, are "expertly designed", ...
The objective of this project is to explore what happens to the ocean and ocean life in an oil spill.It is an educational content by education.com.By clicking on the title of this resource, you will b ...
Composting is the process that turns vegetable scraps and other organic into lovely soil. Carbon and nitrogen are essential ingredients in your compost. Carbon-rich are called brown , and nitrogen-r ...
When it’s raining hard, those raindrops look like they’re bouncing up and down on the sidewalk. What are they really doing, and how does the size and height each drop make it splash in different ways? ...
Volcanoes are very interesting. I wanted to find out what happens inside a volcano. I have read about it and also seen some videos. I made a model of volcano to see how a chemical reaction makes a mag ...