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CEM
Compounds , Elements , and Mixtures
| Sentence and Question | Answer | Answer |
|---|---|---|
| A mixture is a combination of one or more substances in which each component retains its own properties and still can be separated. There are two types: homogeneous and heterogeneous. Which of the following is not a mixture? | A. Cereal and Milk B. Salad C. Salt D. Powdered Drinks | D |
| A compound is a substance made up of two or more elements that cannot be separated by a physical change. They can be broken into simpler substances by chemical means. Which of the following is not a compound? | A. Water B. Sugar C. Snack Mix D. Salt | C |
| An element is a substance made up of all of the same atoms. An element is the simplest form of pure substance and they cannot be broken into anything else by physical or chemical means. All of the following are elements except which one? | A. Baking Soda B. Hydrogen C. Copper D. Lithium | A |
| A heterogeneous mixture is a mixture in which the materials are different sizes and often different states of matter. You can tell the difference between the different components in the mixture. Which one is not an example of a heterogeneous mixture? | A. Sand and Pebbles B. Bronze C. Chicken Noodle Soup D. Nuts and bolts | B |
| A homogeneous mixture is a mixture in which the different materials appear to be the same state of matter. The materials are difficult to tell apart. Which one of the following is not a homogeneous mixture? | A. Salt Water B. Powdered Drinks in water C. Cereal and Milk D. Toothpaste | C |
| In a colloid the particles are mixed together but not dissolved. It will not separate upon standing. Which of the following are examples of colloids? | A. Cups of Coffee B. Pizza C. Whipped Cream, Muddy Water, Mayonnaise D. Skittles, M & M's | C |
| A solution is a type of homogeneous mixture formed when one substance dissolves in another. A solution always has a substance that is dissolved and one that does the dissolving. Which one is a solution? | A. Ocean Water B. Grass C. Wood D. Plasma | A |
| A solution is a homogeneous mixture of two or more substances; can be solids, gasses or liquids. Of the answers below, choose the ones that are examples of solutions. | A. Air B. Soda C. Bronze D. Coffee | A,B,C |
| Matter is something that has mass and takes up space. It can be solid, liquid or gas. If matter is uniform throughout, would it be heterogeneous or homogenous? | A. Heterogeneous B. Homogeneous | B |
| Pure substances are defined as substances that are made of only one type of atom or molecule. The physical properties of a pure substance include well defined melting and boiling points. Which of the following sentences is true about pure substances? | A. Elements are considered pure substances. B. Plasma is a pure substance. C. Water, juice and shoes are considered pure substances. | A |
| Elements are the simplest pure substance. Compounds are pure substances that are the unions of two ore more elements. Which of the following is a way in which elements and compounds are similar? | A. Elements and compounds are listed on the periodic table. B. Elements and compounds are both made up of different kinds of atoms. C. Elements and compounds can both be broken down by physical changes. D. Elements and compounds are pure substances. | D |
| Scientists like to classify things. One way that scientists classify matter is by its composition. Which of the following is true about matter? | A. All matter can be classified as mixtures, elements and compounds. B. All matter cannot be classified as mixtures, elements and compounds. C. All matter is found on the earth. | A |
| In the powerpoint, the teacher shows us three questions. There are three questions that scientists can ask themselves about matter. Which question is not one of the three questions. | A. Is the matter uniform throughout? B. Can it be separated by physical means? C. Can it be separated by chemical means? D. Does matter have to be compounds | D |
| Many liquid solutions contain water as the solvent. Ocean water is basically a water solution that contains many salts. Which of the following is true about water as a solvent? | A. Body fluids are water solutions. B. Metals are dissolved water solutions. C. Alloys are water solutions. | A |
| Name the universal solvent. Hint: It is a liquid. | A. Water B. Gas C. Solid | A |
Created by:
DechristianMinter