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physical science

Exploring creation with physical science

QuestionAnswer
Atom Atom – The smallest chemical unit of matter
Molecule Molecule – Two or more atoms linked together to make a substance with unique properties
Concentration Concentration – The quantity of a substance within a certain volume
Fifty grams of a carbon disulfide can be broken down into 42.1 grams of sulfur and 7.9 grams of carbon. Is carbon disulfide made up of atoms or molecules? Carbon disulfide is made up of molecules.
If you put iron near a magnet, the iron will be attracted to the magnet. Rust is not attracted to a magnet. If rust contains iron atoms, and iron is attracted to a magnet, why isn’t rust attracted to a magnet? Rust is not attracted because when an atom is a part of a molecule, the molecule does not take on the characteristics of the atom. Instead, the atoms in the molecule join together in such a way as to give the molecule its own unique characteristics.
A statue is made out of copper and displayed outside. After many years, what color will the statue be? The statue will eventually turn a shade of green, just like the copper wire did in Experiment 1.1. This comes from the copper atoms reacting with water and carbon dioxide in the air to make copper hydroxycarbonate.
Have scientists actually seen atoms? Scientists have NOT seen atoms.
If you wanted to measure an object’s mass, what metric unit would you use? What English unit would you use? Mass is measured in grams in the metric system. In the English system, it is measured in slugs.
If you wanted to measure an object’s volume, what metric unit would you use? What English unit would you use? Volume is measured in liters in the metric system. In the English system, it is measured in gallons, pints, or quarts.
If you wanted to measure an object’s length, what metric unit would you use? What English unit would you use? Length is measured in meters in the metric system. In the English system, it is measured in feet, yards, inches, or miles.
If ozone is poisonous, why is baking bread not considered a dangerous activity? Baking bread is not a dangerous activity because the ozone it produces is not concentrated enough to be dangerous.
Created by: _ardss_