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Here is the physical and chemical changes and properties of matter worksheet answers.pdf file. Matter Homework Packet Physical and Chemical Changes and Properties of Matter Worksheet Classify the following as chemical change (cc), chemical property (cp), physical change (pc), or physical property (pp). 1. _____ Heat conductivity 8. _____ Combustible 2. _____ Silver tarnishing 9. _____ Water freezing 3. _____ sublimation 10. _____ Wood burning 4. _____ magnetizing steel 11. _____ Acid resistance 5. _____ length of metal object 12. _____ Brittleness 6. _____ shortening melting 13. _____ Milk souring 7. _____ exploding dynamite 14. _____ baking bread Identify the following as being true or false to the left of the sentence. _____ 15. A change in size or shape is a physical change. _____ 16. A chemical change means a new substance with new properties was formed. _____ 17. An example of a chemical change is when water freezes. _____ 18. When platinum is heated, then cooled to its original state, we say this is a physical change. _____ 19. When milk turns sour, this is a physical change because a change in odor does not indicate a chemical change. _____ 20. When citric acid and baking soda mix, carbon dioxide is produced and the temperature decreases. This must be a chemical change. Identify each of the following as a physical or chemical change. 21. _____ You leave your bicycle out in the rain and it rusts. 22. _____ A sugar cube dissolves. 23. _____ Scientist break-up water into oxygen and hydrogen gas. 24. _____ Burning coal for a barbecue. 25. ______ Trimming a bush because it has grown too tall. Classifying Matter Worksheet Classify each of the following substances as an element, a compound, a solution (homogenous mixture, or a heterogeneous mixture. 1. Sand 2. Salt 3. Pure Water 4. Soil 5. Soda just opened 6. Pure air 7. Carbon Dioxide 8. Gold 9. Brass 10. Oxygen 11. Italian Salad Dressing 12. Salt Water 13. Raisin Bran 14. Silver 15. Lithium Iodide 16. Apple Pie 17. Kool Aid 18. Sugar Water 19. Chocolatechip Cookie 20. Gatorade 21. Gold 22. tacos 23.Lead 24. Ceasar Salad 25. Calcium 26. Whole Milk 27. Skim Milk 28. hydrogen peroxide 29. Potassium 30. Sugar 31. Raisin Bran Cereal with Milk 32. Raisin Bran Cereal without Milk Vocabulary Cards Use the example below, make vocabulary cards for the following words on the bottom and back of this paper: Compound Mixture Pure Substance Element Matter Identify each of the following as an example of a physical property or a chemical property. Silver tarnishes when it comes in contact with hydrogen sulfide in the air. A banana is yellow. A sheet of copper can be pounded into a bowl. Barium melts at 725 C. Gasoline is flammable. A diamond is the hardest natural substance. Helium does not react with any other element. A bar of lead is more easily bent than is a bar of aluminum of the same size. Potassium metal is kept submerged in oil to prevent contact with oxygen or water. An apple will turn brown is left in oxygen. Diamond dust can be used to cut or grind most other materials. Acid in tomato sauce can corrode aluminum foil. Rocks containing carbonates can be identified because they fizz when hydrochloric acid is applied. A piece of charcoal, which is mostly the substance carbon, glows red, gives off heat, and becomes a gray ash.
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Equilibrium and pressure answers and questions worksheet - Student Exploration: Equilibrium and Concentration Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes.
Gas properties simulation activity answer key and worksheet. Under Pressure: A Gas Properties Homework Activity This activity is designed to help us determine the relationships between the physical properties of gasses, pressure, volume, number of moles, and temperature. We will investigate how a change in one of these properties will affect the rest. The heavy species you will see are a model representation of N2 gas molecules.
Student Exploration: Density Laboratory - student exploration density laboratory gizmo answer key Vocabulary: buoyancy, density, graduated cylinder, mass, matter, scale, volume Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Of the objects below, circle the ones you think would float in water. Why do some objects float, while others sink? Gizmo Warm-up The Density Laboratory Gizmo allows you to measure a variety of objects, then drop them in water (or other liquid) to see if they sink or float. 1. An object’s mass is the amount of matter it contains. Mass can be measured with a calibrated scale like the one shown in the Gizmo. Drag the first object onto the Scale. (This is object 1.) What is the mass of object 1? 2. An object’s volume is the amount of space it takes up. The volume of an irregular object can be measured by how much water it displaces in a graduated cylinder. A. What is the initial volume of water in the cylinder? B. Place object 1 into the cylinder. What is the volume in the cylinder now? C. What is the volume of the object? Note: While milliliters (mL) are used to measure liquid volumes, the equivalent unit cubic centimeters (cm3 ) are used for solids. Therefore, write the volume of object 1 in cm3
molarity phet lab answer key/worksheet Concentration and Molarity PhET Labs