Answer Expert Verified paper absorbs water faster than oil because water has more intercellular spaces (to have spaces between molecules ) when compared with oil.

Light can travel through certain materials, such as glass, water, clear plastic and such materials are called transparent. Translucent materials, like greaseproof paper and frosted glass let some but not all light through. They scatter or diffuse the light.

In contrast to water, fats that get absorbed by paper cannot get enough heat to evaporate at room temperature. An easy way to test this is to take a sheet of paper and put one drop of oil next to a drop of water.

Oil can be transparent, translucent or opaque. for example on summer day the coconut oil is transparent but in winter season coconut oil become solid so it is opaque in this solution.

Some examples of translucent objects are frosted glass, butter paper, tissue, various plastics, and so on. Opaque substances do not allow the transmission of light. Any incident light gets reflected, absorbed, or scattered.

Some examples for translucent objects are: Butter paper, ground glass, thin sheets of plastic etc. Some examples are: Transparent: Clean glass, water, air. Translucent: Frosted glass, wax paper, butter paper, smoke. Opaque: Stone, metal, wood.

Translucent Materials We call this type of substance translucent. An example of this is a pair of sunglasses. Sunglasses allow some light to pass through which allows you to see. The rest of the light is either absorbed or reflected off the surface of the glasses.

Snow and ice are made of water molecules with a regular crystal structure, meaning all of the water molecules in ice are arranged in the same way. This should let light pass through without it being scattered, making it transparent. This is the case for Ice, as in an ice cube or shard as they have smooth strait edges.

Commercial ice machines usually circulate water over a plate/grid that is freezing cold. The cleanest, purest water freezes, and the minerals, impurities and air bubbles continue moving along. So the clear ice cubes made by commercial ice makers are simply made of the purest water. That’s why they’re clear!

Frosted glass and ice are for instance translucent objects. This means light does not always pass through it in a direct path.

Ice cubes tend to be cloudy when water is cooled rapidly The reason is not related to the water being full of impurities, but rather in how it’s cooled. To ensure that their ice cubes are as clear as possible, specialized ice makers freeze water in layers so that air bubbles do not form within the ice.

How to make clear ice: a tutorial

1. Step 1: Freeze warm water in a cooler for 18 to 24 hours.
2. Step 2: Remove the ice from the cooler.
3. Step 3: Cut the ice into cubes with a serrated knife.
4. Step 3: Shape the clear ice chunks with an ice pick (optional).
5. Step 4: Store the clear ice.

“Boiling water does not make clear ice. It may make ice a little bit clearer than without, but it makes no significant difference compared to using directional freezing.” There are two methods of directional freezing to try at home—one more involved than the other, but both equally as effective.

New ice is usually much stronger than old ice. Direct freezing of still water makes stronger ice than that formed by melting snow, refrozen ice, or ice made by water bubbling up through cracks and freezing on the surface. Clear blue/black ice is stronger than milky white ice. Ice near the shore is weakest.

Re: Is lake ice thicker in the middle or close to shore? Ice on the edge is limited to the depth of the water at the edge. So it is always thicker towards the middle.

Clear Ice Cubes Melt More Slowly All that trapped air causes white ice to melt faster than clear ice, too. A perfectly solid cube packed with only water molecules can maintain its low temperature longer — unlike cloudy ice, which reaches room temperatures faster thanks to the air bubbles.

Mineral content in water will affect hardness as well as temperature. In general though, ice will rate somewhere around 1.5 Mohs. On he same scale, youd like concrete to be in he 5-7 Mohs range. So, yes, in general concrte is harder than ice.

The answer is that concrete never cures completely. It is always hardening a little bit more each day. Your concrete should be solid enough to walk on, without leaving footprints, after anything from 24 to 48 hours. By seven days, your concrete should be cured to at least 70 percent of its full strength.

Ice is not considered safe to walk on until it is at least 4 inches thick. At 4” the ice is suitable for ice fishing, cross-country skiing and walking and can support about 200 pounds. At 8-12 inches the ice should be suitable for a small car or a larger group of people.

You are correct in stating that ice’s official “hardness”, as measured on the “Moh’s scale of hardness of minerals”, is only 1.5. The hardness of minerals ranges from 1 (for talc, to 10 for diamond”. Practically all minerals are technically harder than ice. Rock is nothing more than a collection of minerals.

Diamond

Scientists have calculated that wurtzite boron nitride and lonsdaleite (hexagonal diamond) both have greater indentation strengths than diamond. Source: English Wikipedia. (PhysOrg.com) — Currently, diamond is regarded to be the hardest known material in the world.

Diamonds

One of the most beautiful types of natural stone is granite. Not only does it attract the eye, but it’s also one of the strongest, most durable and versatile stones making it perfect to use as a counter top or as an architectural feature.

Diamond is graded the hardest (10), followed by ruby and sapphire (9), topaz, emerald and spinel (8), and garnet, tourmaline and quartz (7). The softest stones include talc (1), gypsum (2), calcite (3) and fluorite (4).

Nuclear pasta