Physical Properties
A characteristic of matter that can be observed or measured without changing the substance.
What is a physical property?
The amount of space an object takes up.
What is volume?
A physical combination of two or more substances.
What is a mixture?
When sugar seems to disappear after being mixed with water, we say it has done this.
What is dissolved?
A magnet is attracted to an object. The object has this physical property.
What is magnetism?
Name TWO physical properties you could use to describe a piece of glass.
What are clear/transparent, smooth, hard, brittle, etc.?
The amount of matter in an object.
What is mass?
Trail mix containing raisins, nuts, and dried fruit is this type of mixture.
What is a heterogeneous mixture?
Salt mixed evenly into water is an example of this.
What is a solution?
A material allows heat or electricity to pass through it easily. It has good _____.
What is conductivity?
This property describes whether a substance can dissolve in water.
What is solubility?
A large balloon and a small bag of marbles are on a table. The balloon takes up more space. Which has greater volume?
What is the balloon?
Gravel and sand are mixed together. Is this mixture homogeneous or heterogeneous?
What is heterogeneous?
Which would dissolve sugar faster: cold water or warm water?
What is warm water?
Which is usually a better conductor: copper wire or an eraser?
What is copper wire?
A copper wire allows electricity to easily pass through it. What property does this demonstrate?
What is conductivity?
75 g of ice melts inside a sealed container. How many grams of liquid water should remain?
What is 75 g?
Two different kinds of cereal are poured into the same bowl. Why is this a mixture?
What is because the substances are combined but can still be seen and separated?
Name TWO things you could do to make sugar dissolve faster in water.
What are use warmer water and stir?
Two white powders look exactly alike. What physical property could you test to help tell them apart?
What is solubility?
Container 1 is clear, bends easily, and melts near a flame. Container 2 is not clear, is difficult to dent, and does not easily melt. Which is more likely metal?
What is Container 2?
True or False: If two objects have the same volume, they must also have the same mass. Explain.
What is false? Different materials can have different masses even when their volumes are equal.
A student dissolves 10 g of salt into 90 g of water. The solution has a mass of 100 g. The student says, “The salt disappeared.” What evidence proves the student wrong?
What is the total mass is still 100 g, showing the salt is still present even though it dissolved?
You have an unknown white powder. It could be salt or sand. What investigation would best help identify it?
What is mix it with water and observe whether it dissolves?
Material A is white, not magnetic, and dissolves in water. Material B is silver, magnetic, and does not dissolve. Which observation provides the strongest evidence that Material B could be iron?
What is that it is magnetic/attracted to a magnet?