You should aim to clean the bathroom once a week and even more frequently if it gets heavy use by a large family. It turns out that there are many different things you can do with two pieces of glass, and these things can have a big effect on you when you use the lenses. Wet/dry vacuums can vacuum up large quantities of standing water very quickly. In the small plastic cup, add a teaspoon (5 milliliters) of borax powder to 0.5 cup (4 ounces or 118 milliliters) of warm water. You’ll need measuring spoons and a measuring cup to get the right proportions for the mixture. Use in the laundry for regular stains: Soak stubborn stains on cotton, polyester, or nylon fabrics with a solution of 2/3 cup clear ammonia, 2/3 cup dish soap, 6 tablespoons of baking soda, and 2 cups warm water. Though it can be a bit perilous when using a this advanced cleaner, if you use it in the right way, it can give you excellent result. Use your all-purpose bathroom cleaner to wipe down your countertops, and use a store-bought glass cleaner to get your mirrors squeaky clean.

In 1968, for example, Apollo astronauts kept the stuff handy to tack down objects in the low-gravity environment of space. Certain surfaces, such as water, can reflect a great deal of light, and the bright spots can be distracting or can hide objects. Of these, potassium dichromate (K2Cr2O7) is the most effective: it is relatively cheap, easy to purify, and can nearly completely oxidize almost all organic compounds. These compounds serve a variety of physiological and allelochemical purposes, and provide a sufficient stock for the evolution of defensive chemicals. So in a sense both studies agree: Automobile interiors contain poisonous chemicals. Some seem to make no sense at all, like lead (Pb), silver (Ag), and gold (Au). You will also learn how light works and see why light, in certain situations, can make sunglasses absolutely essential. As you will see in this article, there really is a difference between the various sunglasses you’ll find out there. It didn’t take long for kids to see what adults were playing with and to sneak some covert samples.

Eventually, chemistry teachers began to take notice and started teaching the science of Silly Putty. In this article, we’ll take the mystery out of sungl­asses and help you understand what to look for when you buy a pair. Oftentimes, you can look at the back of a food package and identify artificial ingredients, preservatives or some long name that doesn’t exactly sound like food. By this definition, gases can be fluids, as can certain solid-type materials. Chemists classify such materials as Newtonian fluids in honor of Isaac Newton, who pictured a fluid as a series of layers sliding past each other and reasoned that viscosity is the result of friction between these layers. Other viscous materials include honey, molasses and engine oil. It’s why honey and syrup flow more easily when heated and why engine oils and hydraulic fluids perform poorly on really cold days. You might also have a resealable plastic bag or container on hand if you want to save your homemade putty for a few days.

Avoid excessive wiping, which might cause damage. If there is still too much light, as there can be when sunlight is reflecting off of snow, the result is damage to the retina. Good sunglasses can completely eliminate this kind of glare using polarization (we’ll discuss polarization later). The easiest way to do this is to find ways to run our chemical plants at lower temperatures with the aid of catalysts or by using alternative routes. “So before buying one, make sure you can pick it up and maneuver it.” Look for a lightweight upholstery cleaner with a long power cord, or find a cordless option (like a cleaning spray or battery-powered handheld model). To identify a chemical property, we look for a chemical change. We’ll analyze the different styles and look at the technology behind the different lens compositions. The AirRAM Platinum is an incredibly powerful vacuum, boasting Gtech’s innovative AirLOC technology that is designed to effectively pick up dirt, debris, and hair not only on the forward stroke, but the back stroke too. Instead, they form a large mat that resembles a net or a spider’s web. Empty an 8-ounce (237-milliliter) bottle of glue into the large bowl. William Harding School is a four form entry primary school with a pre-school for pupils aged 2 upwards.