| A | B |
|---|
| What equation would you use to find the volume of a rectangular box | volume=length x width x height |
| Which of the following units would you use to express the volume of an irregular solid such as a rock? | cubic centimeters (cm3) |
| Which of the following statements is true about an object's weight but NOT about its mass? | It may very depending on the object's location |
| The larger an object's mass, the | smaller its inertia |
| If you poured three liquids(that do not mix completely)into a beaker, how could you tell which one is the densest liquid? | the liquid that settles to the bottom is the densest liquid |
| What happens to a solid object with a density that is less than water when it is placed in water? | the object floats on top of the water |
| Which of the following is NOT an example of a physical change? | the explosion of fireworks |
| Wht kinds of changes in substances are always phsical changes? | changes of state from solid to liquid to gas and back |
| Why are chemical properties harder to observe than physical properties | chemical properties change the substance's identity |
| What is the best way to tell if a chemical change has taken place? | a composition changes |
| Which of the following is NOT the result of a chemical change? | ground flour |
| Which of the following is a chemical property of matter? | reactivity |
| What makes characteristic properties useful to scientist? | they can be used to identify matter |
| Which property of matter is a measure of the gravitational force? | weight |
| In a graduated cylinder containing several liquid layers, the least dense liquid is found. | floating at the top |
| How does a physical change differ from a chemical change? | in a physical change the composition is unchanged |
| Melting crayons is an example of a | physical change |
| Which of the following units would be best for describing the volume of mercury(liquid) used in an experiment? | liters or milliliters |
| Which of the following events is NOT a common sign that a chemical change has taken place? | change in state |
| What chemical property is responsible for iron rusting? | reactivity with oxygen |
| What unit of density would be appropriate to describe a solid bar of silver | g/cm3 |
| Which physical property of matter describes the relationship between mass and volume? | density |
| Souring milk is an example of a | chemical change |
| Malleability is an example of a | physical property |
| Which of the following is not a physical property of matter? | reactivity with water |
| During physical changes, matter always retains its | identity |
| To compare the densities of oil and water, pour the liquids into a conatiner and observe how they | separate into layers |
| What has mass and takes up space | matter |
| Which of these phrases describes the results of a chemical change | chared wood, ash, and smoke |
| Why is freezing water to make ice considered a physical change | the water changes its state |
| Why would dissolving salt in water be considered a physical change? | the salt returns if the mixture is heated |
| Why would molding clay be considered a physical change? | the clay changes only its shape |
| What makes chemical properties so difficult to observe? | observing them produces new materials |
| How can you tell that baking a cake produces a chemical change? | it combines the ingredients to form new substance |
