Properties of Matter

A student puts four objects in a bucket filled with water. The objects are listed below. Which of the two objects are most likely less dense than the water? 
-Plastic ball
-Glass marble
-Metal paper clip
-Wood block

• Wood block and metal paper clip
• Plastic ball and glass marble 
• Metal paper clip and glass marble 
• Wood block and plastic ball

A student was asked to compare the masses of four blocks that were all the same size but made of different materials. The student used a balance to compare the masses of two blocks at a time. The student repeated this process three more times with different pairs of blacks and recorded observations. Which list show s the blocks in order from least to greatest mass? 

• Blocks N, M, L, P
• Blocks P, M, L, N
• Blocks N, L, M, P
• Blocks P, L, M, N

The table lists some properties of four different samples of matter. Which two samples could be glass and saltwater? 

• Samples 1 and 2
• Samples 3 and 4
• Samples 1 and 3
• Samples 2 and 3

A teacher gives a student four clear sealed containers. Each container holds a different substance. The student records some observations about the substance in each container. Based on the observations, which container most likely holds only gas? 

• container 1
• container 2
• container 3
• container 4

Some students investigate the properties of four objects using a hand lens, a magnet, and a beaker containing water. Their observations are recorded in the table. Which statement identifies a property that could be used to classify these objects into tow different groups? 

• Density can be used to separate objects that sink in water from objects that do not. 
• Magnetism can be used to separate objects that are attracted by a magnet from objects that are not. 
• Solubility can be used to separate objects that dissolve in water from objects that do not. 
• Physical state can be used to separate objects that are solids from objects that are not. 

A student classifies the objects show based on their physical properties. Which property cannot be used to classify these objects into more than one group? 

• magnetism 
• mass 
• electrical conductivity 
• solubility in water 

A science class tested three properties of different materials. The results are show in the table. Based on the table, which material would be best to use to insulate the electrical wires? 

• wood
• plastic 
• cooper 
• steel 

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary? 

• The metal pan creates thermal energy. 
• The metal pan insulates thermal energy. 
• The metal pan conducts thermal energy. 
• The metal pan reduces thermal energy. 

A student reads the label on the bottle of salad dressing shown. Why would the student shake the salad dressing well before using it? 

• Vinegar and oil have different densities. 
• Vinegar and oil easily form a solution. 
• Vinegar and oil both contain water. 
• Vinegar and oil are both liquids. 

A mixture of beads was placed in a container, as show below. The beads are of various sizes, and each one is made of plastic, glass or steel. The mixture would be easy to separate because all the beads-

• are less dense than water
• are solids 
• have the same mass 
• are attracted to a magnet