Your Name: ______
Physical Science in Action Video Series
Elements, Compounds, and Mixtures
Before the video.
1. Name 3 elements:
2. Name 3 compounds:
3. Name 3 mixtures:
During the video.
1. All things are made of e______. An e______is a unique and pure substance in its simplest form.
2. In an element, all the a______are the same. In other words, two a______of the element gold have the same number of protons.
3. Draw an atom below that has 2 electrons, 2 neutrons, and 2 protons:
4. The properties of the elements copper and sulfur are d______. No two elements have exactly the same properties.
5. Any substance made of one type of a______is an element.
6. ______% of the Universe is made of hydrogen.
7. The e______is made mostly of 4 elements: Hydrogen, Carbon, Oxygen, and Silicon.
8. All of the known elements can be found on the p______t______of elements.
9. When the atoms of 2 or more elements join together to create a new substance, it is called a c______. Atoms join together to make a c______through a process called chemical bonding.
10. Two hydrogen atoms bond with one oxygen atom to form a new compound. This compound is w______.
11. Every different combination of a______and m______creates a new substance. Just like the atoms in elements are all the same, all the molecules in a c______are the same.
12. Two substances can also combine in a m______. A m______DOES NOT involve chemical bonding.
- After a c______forms, the properties of the original ingredients actually change. In a mixture, the original ingredients mix together but keep the same p______. Mixtures can be separated into their original ingredients by p______means.
14. A heterogeneous mixture IS NOT well m______; it does not look the same throughout and you CAN see the bits of the original substances.
15. A homogeneous mixture IS well m______and the same throughout; you CANNOT see the bits of the original substances.
16. A s______is the best mixed homogeneous mixture. A s______is created by dissolving one substance into a different substance. The thing being dissolved is called the solute. The thing doing the dissolving is called the solvent.
After the video.
1. Go back to the beginning of this paper and fix you lists of elements, compounds, and mixtures.
2. Do compounds or mixtures involve chemical bonding? ______