Chemistry Crossword

3. / CO C H O are ________ because they both contain two or more elements.
8. Substance / Platinum only contains platinum particles. This means that it is a _____ __________ because it contains only one type of particle.
9. Mixture / Laundry detergent is a __________ _______ because it has different parts that are evenly mixed together. Laundry detergent contains elements like citric acid and acetic acid.
11. Molecular Theory / The _________ __________ _________ is the theory that states that matter is made up of moving particles and that the more energy the particles have the faster they move. For example, when mercury in a thermometer is heated the particles move faster and rise.
12. / Copper is an example of _________ because it has a mass and volume.
13. / Carbon, fluorine, and silicon are all _________ on the periodic table. They are all pure substances that can't be broken down into anything simpler.
14. Point / A _________ ________ is the temperature when a liquid is heated and turned into a gas. The temperature that acetone turns into a gas is 56 .

1. / Density is the mass per unit __________ of a substance. If the mass of a piece of titanium is 3kg and the volume is 5L then the density is 0.6.
2. / The ______ of a block of gold is 10kg.
3. / The process where certain metals such as iron, reacts with oxygen and turns into metal oxides(e.g. iron oxide), is called __________.
4. change / When potassium and chlorine gas are added together it turns into a new substance: Chloride. This change is called a ___________ _________, when a substance changes into a new substance with different properties.
5. change / When aluminum is melted so that it turns into a liquid from a solid it has gone through a change of state and appearance; not a change in substance. This means the aluminum has gone through a ___________ _________.
6. point / A ________ _______ is the temperature when a solid is heated and turned into a liquid. The temperature that silver turns into a liquid is 961.8 .
7. / A tank has 4L of gasoline. 4L is the volume of the gasoline because it takes up 4L of _______.
9. mixture / Salads are _____________ _________. A Greek salad has different parts that make it a mixture like cucumbers, tomatoes, onions, and sodium. All the parts are visibly distinguished.
10. / Matter has three different _______, solid, liquid, and gas. For example, water is a liquid but when frozen it turns into a solid(ice), and when heated turns into a gas(water vapour).