molecules and atom and element and matter
- 2. Page 2 Page 1 Topic (1), Lesson(2) Model Matter Science book pages( 16 to 22 ) Explain that matter is made of tiny particles too small to be seen. In this Lesson You will Atom Element Molecule Compound Atomic Theory Lesson Vocabulary When you grind salt, you divide chunks of salt into smaller pieces. These small pieces are still salt. The small grindings have a similar shape to the larger pieces. They taste the same on your food. You can crush them again with a spoon to make salt powder. Divide Matter Example
- 3. Page 4 Page 3 The sand castle is made of matter, It takes up a lot of space. It has a large mass. But if you look closely. You will see that it was made of tiny Sand grains. A sand grain is also made of matter But it has a little space and small mass. All kinds of matter are made of tiny parts All matter are made of elements. An element is made up of only one kind of atom. Elements are the simplest substances that make all kinds of matter. Atomic theory : is the idea that everything is made of small particles. The smallest part of an element that still has the properties of the element. All substances are made of atoms. An atom Elements are the ingredients that make up all kinds of matter.
- 4. Page 6 Page 5Some information about atoms 2-Atoms of each element are different from the atoms of other element. 1-Atoms are too small to be seen with a regular microscope, but special instruments can show how atoms are arranged. Example Carbon dioxide is a molecule that has only three atoms. A Molecule is a group of atoms bonded or(connected) together. - it represents the smallest unit of compound that has the same properties of that compound An atom is the part of an element. A particular element is composed of only one type of atom.
- 5. Page 8 Page 7Most things around you are Compounds are matter made of two or more elements. The atoms of different elements are joined together in a particular way to form each compound. Table salt is a compound that is made up of the elements sodium and chlorine. Compounds Example A compound is the substance produced when two or more elements combine in a chemical reaction. A compound is always made up of two or more different types of atom. Two elements, hydrogen (H) and oxygen (O), combine to make the compound, water.
- 6. Another Example on Compounds Making a compound – carbon dioxide A compound has very different properties to the elements from which it is made. Carbon dioxide A colourless gas which is used to put out fires. Carbon A black solid which can be used as a fuel. compound elements Oxygen A colourless gas which is essential for life.
- 7. Page 8 The Lesson’s Main idea is made of are made of ♦The idea that everything is made of small particles is known as “ Atomic theory” Any substance “Matter” s E L E m E n t A t m o s
- 8. Thanks