Element Oygen Prezi

http://prezi.com/-xwdn7yb5cif/element-oxygeno/

The topic of this Prezi I made was about Oxygen.

Periodic Table of Metals and Non-metals and the groups of it

Metals and Non-metals

  Periodic Table of Elements 

My Scientific Vacation

My holiday was not as scientific as possible. But I traveled a lot. I got to see Italy for the first time and I was in the sea. I went there with some friends from Turkey for a championship and we had a lot of free time that we discovered interesting stuff on the beach. When we were swimming in the sea, we found some kind of little sea creatures. We couldn't really understand what it was. But than when we asked a men, he said that those could be poisonous in other places but it wasn't in this sea. My friend was trying to pick it with his hand and feel it. We saw one part of the sea where the whole surface of the sea was filled with these and than I remembered from some pictures that in most seas it is like that. My friend took it in his hand and it had a tail. He realized that it was  really fast and also slippery. He was holding the creature from its tail. Some had long tails, which could be poisonous, but my friend seemed like he did not really care. In my holiday I discovered a  lot of stuff in the sea and it was interesting, cool and fun.

Section 1: Elements and Atoms Assessment

Reviewing Key Concepts:

1. a. Defining What is matter? What is an element?

Matter is anything that has mass and takes up space. 2000 years ago, the ancient Greeks believed that all matter was made up of four elements. Which were air, earth, fire and water.

Elements are the simplest pure substances, and they cannot be broken down into any other substances.

b. Explaining  Why are elements called the building blocks of matter?

They are often called the building blocks of matter because all matter is composed of one element or a combination of two or more elements.

c. Inferring  Water is compound. Does water contain elements? Explain.

Yes, there are two elements in water. Oxygen and hydrogen. Water consists of  two hydrogen and one oxygen. 

2. a. Reviewing In general, why did atomic theory change in time?

Atomic theory grew as a series of models that developed from experimental evidence. As more evidence was collected, the theory and models were revised. 

b. Describing Describe Bohr's model  the atom. What specific information did Bohr contribute to scientists' understanding of the atom?

Bohr showed that electrons could have only specific amounts of energy, leading them to move in certain orbits.

c. Comparing and Contrasting How is the modern atomic model different from Bohr's model? Why did scientists revise Bohr's model? 

The modern atomic model was different from Bohr's model because this new particle was hard to detect because it has no electrical charge even though it was nearly the same mass as a proton.