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### 36 Cards in this Set

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 Please fill in the blank for the missing steps STEP 1: STEP 2: Form a hypothesis STEP 3: STEP 4: Analyze data STEP 5: STEP 6: Communicate Results STEP 1: Make observations STEP 2: Form a hypothesis STEP 3: Conduct an experiment STEP 4: Analyze data STEP 5: Accept/reject hypothesis STEP 6: Communicate Results What is the scientific method? A list of steps a scientist takes in order to start and complete an experiment. What is a hypothesis? An educated guess based on prior knowledge or the information given to you. Draw King Henry’s Ladder: Kilo Hecto Deka Base Deci Centi Milli 1. 1000mg= g 2. 1 L= mL 3. 160 cm= mm 4. 14 km= m 5. 109 g= kg 6. 10m= km 1.1 2.1000 3.1600 4.14000 5.0.109 6.0.010 Matter Any thing that takes up space and has mass. Mass The amount of matter in an object. Volume The amount of space an object takes up. Density Mass divided by volume Weight The force of gravity pushed upon you. Atom The basic particle from which all elements are made of. Endothermic A change in which energy is absorbed. Exothermic A change in which energy is released. Element A substance that can not be broken down into any other substance by chemical or physical means. Compound A substance made of two or more elements chemically combined in a specific ratio, or proportion. Mixture Two or more substances that are together in the same place but their atoms are not chemically bonded. Law of Conservation of Mass The fact that matter is not created or destroyed in any chemical or physical change. Thermal energy The total energy of the motion of all the particles in an object. How do you find the density of an irregular shaped object (marble)? ? How do you find the density of a regular shaped object (block of wood)? ? Define the following as being a physical or chemical property: 1. Solubility 2. State 3. Density 4. Volume 5. Reactivity 6. Flexibility 7. Flammability 1. 2. 3. 4. 5. 6. 7. Define the following as being physical or chemical changes: Melting 1. Change in color or odor 2. Bubbling/fizzing 3. Change of state 4. Rusting 5. Tarnishing 6. Crushing 7. Souring milk 1. 2. 3. 4. 5. 6. 7. Calculate the density of: 1. An object with a mass of 10g and a volume of 5cm3 2. An object with a mass of 120g and a volume of 30cm3 3. An object with a mass of 1200g and a volume of 3mL 1. 2. 3. List 3 clues that a chemical change might be occurring. 1. Two substances form from one substance. 2. The substance has a different boiling point. 3. The substance is fizzing or bubbling. Give 5 ways to separate a mixture. 1. Flitration 2. Magnetism 3. Pick it apart by hand 4. Distillation 5. Evaporation What are the 2 types of mixtures and how do they differ? Give 2 examples of each. Homogenous and Heterogenous Homogenous is something that can't be separated from just looking at it a picking it away by hand, but heterogenous is something that you could pick away by hand. Homogeneous/ Brewed coffee/wine Heterogeneous/ Soil/sea water Viscosity A liquids resistance to flowing. Surface tension The result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together; causes the surface to act as if it has a thin skin. Change of state Change in appearance. Fluid Any substance that can flow. Pressure The force pushing on a surface divided by the area of that surface. State Charles’s Law and give an example A principle that describes the relationship between the temperature and volume of a gas at constant pressure. State Boyle’s Law and give an example A principle that ascribes the relationship between the pressure and volume of a gas at constant temperature. What happens to the energy of the particles when they change state? ? What are the 2 types of vaporization and how do they differ? ? Be able to label a change of state graph (workbook/worksheet). ?