Study Island

How do water particles behave when they are in the gas state?

• The molecules move freely and rapidly in all directions
• The molecules are packed together in patterns
• The molecules can move short distances and vibrate slightly
• The molecules do not move

Gina is sitting by a stream. She sees a clam shell on the bottom. an acorn falls into the stream and floats. A wooden stick also floats by. Which object that Gina saw has the greatest density?

• water
• acorn
• wooden stick
• clam shell

Ms. Finney's class is performing an experiment. In the experiment, the class heats a liquid to a very high temperatures. The object of the experiment is to determine the temperature at which the liquid changes into a gas. This temperature is known as the liquids ___________

• freezing point
• soluble point
• boiling point
• melting point

Which of the following is most likely to conduct electricity

• a rock
• a plastic bottle
• a shoelace
• a penny

Georgia has a box filled with the following items: red paper clips, yellow pencils, white paper, silver staples, green stickers, purple crayons, gold tacks. By which of the following physical properties could Georgia separate these items into two groups?

• magnetism
• shape
• size
• color

A scientist in a lab would like to determine if an object conducts electricity. Which of the following experiments would test this?

• float the object in water
• place the object on a source of heat, and measure the time it takes to heat up
• include the object in a circuit and check to see if the circuit still works
• weigh the object before and after refigeration

which of these materials could be grouped together on the basis of their physical state? 1 motor oil, 2 orange juice, 3 a cloud of exhaust, 4 an apple

• 2 and 3
• 1, 2, 3 and 4
• 1 and 2 only
• 1 and 3 only

Ice is usually ________

• invisible
• warm
• liquid
• visible

powdered drink mix is soluble in water. What will happen to powdered drink mix if it is poured into a bottle of water and shaken?

• the drink mix will stick to the sides of the bottle
• the drink mix will dissolve into the water
• the drink mix will sink to the bottom of the bottle
• the drink mix will float at the top of the bottle

Which two materials would be best classified together based on the property of insulating thermal energy?

• a wooden block and a metal can
• a fleece blanket and a Styrofoam cup
• a Styrofoam cup and a metal pipe
• a fleece blanket and a metal tool