Who said each element is composed of atoms

This is seen when hot lava from an erupting volcano enters the ocean or when a bucket of water is dumped on a campfire. Fire creates light, heat, and smoke by a rapid chemical reaction called combustion. Smoke is the result of the incomplete combustion burning of a fuel. Particles that were not burned become suspended in the air.

Smoke is often dangerous because it contains harmful gases that can poison a person who inhales too much smoke. Too much oxygen in the air would also increase the risk of fires on the earth.

Since nitrogen and argon are not very reactive, air is pretty safe for us. In order to put out a fire, one of three things must be removed from it: heat, fuel, or oxygen. Pour the vinegar into the bottle and add the baking soda. You may want to use a funnel.

The mixture should fizz. Hold the bottle sideways over the lighted candle, making sure no liquid escapes. What happens to the flame? The baking soda and vinegar react to make carbon dioxide, a gas that is heavier than oxygen. The fire, now deprived of oxygen, can no longer burn.

Water is often called the Universal Solvent because it can dissolve more substances than any other liquid, often carrying these dissolved particles with it.

When water travels through soil, nutrients food and dissolved particles travel with the water to be deposited somewhere else. Here is an experiment to visually demonstrate how this process happens.

Mix the dry soil and tempera paint thoroughly. Place the funnel in the jar and place the coffee filter in the funnel. Pour the soil mixture into the funnel. Notice the color of the water. Remove the funnel from the jar and pour the water into a cup or container. Replace the funnel over the jar, with the coffee filter full of sand still in place. However, the water came out lighter with each additional cup. Eventually, the water traveling through the soil came out clear in the jar.

Did you count how many half cups of water it took to make the water run clear? The tempura paint in this experiment represents the nutrients and dissolved particles found in the soil.

Water is a very efficient transporter of particles as evidenced by the color of water as it was poured through the soil. The soil started with a relatively high amount of nutrients and particles in it — the tempura paint. Each subsequent pouring of water picked up more nutrients.

With each pouring, the remaining nutrients became less and less until the water ran clear and there were no more nutrients left to travel with the water. George Gabriel Stokes was an accomplished British mathematician in the 19th Century, but throughout his career, he emphasized the importance of experimentation and problem solving rather than focusing solely on mathematics. By experimenting and applying mathematics to physics, Stokes came up with a law that describes the movement of a solid through a liquid or a gas.

He experimented with how wind affects the intensity of a sound and how the intensity is influenced by the type of gas the sound waves travel through. He named and explained fluorescence and investigated the wave theory of light. He also worked on understanding the different colored bands that could be seen in a spectrum and made significant contributions to what we know about light and optics.

The Earth is estimated to weigh 6. To compare, a million is a 1 with 6 zeros following it — a sextillion is a 1 with 21 zeros following it. The deepest part of the ocean is 35, feet 10, meters deep and occurs in the Mariana Trench in the Pacific Ocean.

At that depth the pressure is 18, pounds kilograms per square inch. Several miles wide and miles deep, these currents of air can have wind speeds as high as miles per hour. To contrast, the strongest hurricanes have wind speeds between miles per hour.

Wind and water both cause erosion to the earth, moving large amounts of sand and rock to tear down mountains and build new structures. After you finish this article, we invite you to read other articles to assist you in teaching science at home on the Homeschool Hub, which consists of over free science articles!

Home Science Tools offers a wide variety of science products and kits. Although the concept of the atom dates back to the ideas of Democritus, the English meteorologist and chemist John Dalton formulated the first modern description of it as the fundamental building block of chemical structures. Dalton developed the law of multiple proportions first presented in by studying and expanding upon the works of Antoine Lavoisier and Joseph Proust. Proust had studied tin oxides and found that their masses were either Dalton noted from these percentages that g of tin will combine either with Dalton also believed atomic theory could explain why water absorbed different gases in different proportions: for example, he found that water absorbed carbon dioxide far better than it absorbed nitrogen.

Indeed, carbon dioxide molecules CO 2 are heavier and larger than nitrogen molecules N 2. Dalton proposed that each chemical element is composed of atoms of a single, unique type, and though they cannot be altered or destroyed by chemical means, they can combine to form more complex structures chemical compounds. Many scientists believe that everything is made of atoms.

Someone Rutherford. John Dalton is said to be the discoverer of atoms and molecules. He performed experiments before that shows that matter consists of different small particles. John dalton. Isaac Newton. Log in. Atoms and Atomic Structure. See Answer. Best Answer. Rutherford proved it it from his alpha-particle scattering experiment. Study guides. Q: Who said atoms were made up of subatomic particles? Write your answer Related questions. Who said all matter is made up of small particles called atoms?

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