A container that is full of holes may not seem like it would be able to hold water, but if the holes are small enough, the container can actually hold a fair amount of liquid. This is because the surface tension of the water creates a seal around each individual hole, allowing the container to fill up with liquid even though it has tiny openings all over.
A sieve is full of holes but still holds water. The same is true for a sponge. These two objects have something in common: they are both porous.
Porous means that there are tiny spaces between the particles that make up the object. This means that liquids and gases can pass through the pores. Sieves and sponges are examples of porous materials.
The size of the pores in a material determines what can pass through them. For example, sand has large pores so it can hold water, but it cannot hold smaller particles like flour or sugar. On the other hand, cloth has smaller pores so it can filter out smaller particles like dust or pollen but not larger ones like sand grains.
Sieves and sponges are two examples of how different materials can be full of holes but still hold water (or another liquid).
What Can Hold a Car But Can’t Lift a Feather
Have you ever wondered what can hold a car but can’t lift a feather? The answer is simple – it’s gravity! Gravity is the force by which a planet or other body draws objects toward its center.
The force of gravity keeps all of us on the ground and prevents us from floating off into space. Gravity also affects how objects move through the air. For example, when you throw a ball up in the air, gravity pulls it back down to the ground.
If you could throw the ball hard enough, it would eventually escape Earth’s gravitational pull and go off into space. There are other forces at work in our universe besides gravity. But gravity is the only one that can hold a car (or anything else) to the ground.
So next time you’re stuck in traffic, remember that it’s not just the cars that are being held back – it’s gravity keeping everything in its place!
Credit: www.dillonsupply.com
What is the Difference between a Sieve And a Strainer
When it comes to kitchen utensils, there are a lot of different options to choose from. Sieves and strainers are two similar-looking tools, but they actually have very different functions. Here’s a look at the difference between a sieve and a strainer:
A sieve is a mesh screen that is used for sifting or straining dry ingredients. Sieves come in different sizes, with the smaller ones being used for things like powdered sugar or flour, and the larger ones being used for things like coffee grounds or spices. To use a sieve, you simply place your ingredient in the sieve and shake it back and forth until only the fine particles remain.
A strainer, on the other hand, is a tool that is used for strained liquids. Strainers usually have much finer meshes than sieves, which allows them to catch smaller pieces of food or debris. Strainers are often used when making soup or pasta so that you can remove any unwanted bits before eating.
To use a strainer, you simply place it over a bowl or pot and pour your liquid through it.
A Strainer is Similar to a Sieve in That It Separates Wanted Elements from Unwanted Material, But It Does So Using a More Porous Or Perforated Metal Screen
A colander is a type of strainer used to drain pasta or other food. A strainer is a kitchen tool that is used to separate solid foods from liquids. The most common type of strainer is a mesh strainer, which has a fine metal mesh screen that catches small pieces of food while allowing liquid to pass through.
A colander is a type of strainer that has larger holes and is used for draining pasta or other cooked foods.
Conclusion
A pumice stone is an example of something that is full of holes but still holds water. Pumice is formed when hot lava cools rapidly and the gas bubbles become trapped in the rock. The word “pumice” comes from the Latin word for foam because it is so full of holes.
