5.5A Warm Up Apr06

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

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

Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. These objects include foam cups, keys, and coins. Which of the following explains a useful method for removing some of these objects?

• The keys and coins are less dense than water, so they can be easily picked up off the bottom of the pool by divers
• The foam cups have the same density as water, so they can be cumbled up for removal by the pool filter.
• The foam cups are less dense than water, so they can be removed from the surfase with a pool cleaning net.
• The keys and coins have the same density as water, so they can be washed away when the pool is drained

Which of these is not soluble in water?

• Oil
• Salt
• Honey
• Sugar

A cook uses the ingredients listed below to prepare a meal.
Salt, Cooking oil, Carrots, Butter
All the ingredients are placed in boiling water and the results are listed below.
∎Salt- Solid that dissolves
∎Cooking oil-Liquid that floats
∎Carrots- Solid that does not dissolve
∎Butter- Solid that becomes a liquid and floats
Which objects are considered soluble in water?

• Carrot
• Cooking Oil
• Butter
• Salt

A teacher mixes white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats the mixture until the water evaporates and the powder can be seen again. Which property of the powder is the teacher demonstrating?

• Solubility
• Density
• Conductivity
• Mass

A student made a mixture using equal amounts of salt and pepper. The salt grains were the same size as the pepper grains. What should the student do to most easily separate the pepper from the salt?

• Use a pair of tweezers to remove each grain of pepper
• Runa small magnet through the mixture to attract the pepper
• Put the mixture in water and filter the pepper out of the water
• Use a strainer with a fine wire screen to remove the pepper

Which liquid is the most dense?  

• oil
• water
• syrup
• plastic bottle

What would be the best title for this data table?

• Tools for Measuring Matter
• Tools for Measuring Length
• Tools for Measuring Volume
• Tools for Measuring Mass

Daniella is handed a solid, silver-colored metal object. The metal object conducts thermal energy. It is NOT attracted to a magnet. This object is most likely made from- 

• Brass
• Copper
• Steel
• Aluminum

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2