Water Density
Water Soluble / Not Soluble
Insulators and Conductors
Is it magnetic?
Mixtures and Solutions
100
If an items floats, it is
______ dense than water
Less dense than water
100
A student stirs a spoonful of salt into a beaker of warm water. After stirring the mixture for several minutes, the student no longer sees the salt. What is the best explanation of the student’s observations?
A. The salt sank to the bottom of the beaker.
B. The salt evaporated out of the water.
C. The salt dissolved in the water.
D. The salt melted into the water.
C. The salt dissolved in the water.
100
Students heated a beaker of water on a hot plate. They set a plastic spoon and a metal spoon in the water.
After a few minutes, the handle of the plastic spoon was warm. The handle of the metal spoon was very hot. Why is the metal spoon hotter?
The metal spoon is a conductor, and the plastic spoon is an insulator.
100
Name 2 items that are magnetic.
Answer may vary
100
Hannah mixes water, lemon juice, and sugar to make herself something to drink on a hot summer's day. Which statement about the substances is true when they are stirred together?
A.The water, lemon juice, and sugar maintained their physical properties after they were stirred together.
B.The water, lemon juice, and sugar formed three different layers when they were stirred together.
C.The lemon juice and sugar dissolved into the water making a solution when they were stirred together.
D.The lemon juice dissolved in the water, but the sugar mainted its physical properties when they were stirred together.
C.The lemon juice and sugar dissolved into the water making a solution when they were stirred together.
200
If an item sinks it is said to be ______
More dense than water
200
A science teacher challenged her students to separate a mixture of iron filings, sand, and salt. First, the students used a magnet to extract the iron filings. Then, they added water to help separate the sand and salt. Which substance dissolved when the water was added to the mixture?
Salt.
The Salt dissolved in the water.
200
A piece of copper is placed on a hot plate for one minute. When the copper is picked up with tweezers, the copper is as hot as the hot plate. The copper is said be a
A conductor
200
All of the following can be separated using magnetism except-
A. Wooden buttons and aluminum
B. sand and iron filings
C. metal paper clips and rubber bands
D. pennies and iron nails
A. Wooden buttons and aluminum
200
In which mixture do all the ingredients maintain their physical properties?
A. Sand and iron filings
B. Salt, warm water, and gravel
C. Sugar, salt, and warm water
D. Glass marbles and water
A. Sand and iron filings
D. Glass marbles and water
You can remove the iron filings with a magnetic, and you can remove the glass marbles from the water.
300
Students were conducting an investigation using different objects they found and putting them in water to compare their densities. Each object is placed in beakers with the same amount of water.
Which statements are supported by this investigation?
Select two correct answers.
A.The cork is more dense than the water.
B.The iron is more dense than the water.
C. The wood is less dense than the water.
D. The cork and the iron are both less dense than the water.
E.The cork, wood, and iron are all more dense than the water.
B.The iron is more dense than the water.
C. The wood is less dense than the water.
300
Which of the following are water soluble?
Cooking Oil
Salt
Water flavoring
Copper Penny
Lemon juice
Iron Nail
Food coloring
2. Salt
3. Water flavoring
5. Lemon juice
7. Food coloring
300
Which headings can students BEST use to complete the list
Iron, Steel, Cooper, Aluminum
A. Magnetic
B. Conductors
C. Insulators
D. Water soluble
B. Conductors
Rembers ALL METALS ARE CONDUCTORS.
300
If an item is magnetic, this means the item is made out of
iron
300
Which substances, when mixed together, maintain their original physical properties?
A. Gravel, sugar, warm water
B. Wood chips, warm water, sand
C. Sand, sugar, warm water
D. Warm water, pepper, salt
B. Wood chips, warm water, sand
400
A student puts five objects in a bucket of water. A metal paper clip, glass marble, rock, wood block, and plastic ball are placed one at a time in the bucket. Which objects are more dense than the water?
Select THREE correct answers.
Paper clip
Rock
Glass marble
400
Define water soluble and water not soluble
Answers may vary
400
A student is asked to design a lunch container that will insulate thermal energy and not feel hot to the touch when it is filled with hot food. The student has four materials to choose from. Which of these materials is least useful as an insulator?
A. plastic
B. aluminum
C. rubber
D. wood
Aluminum
Remember: ALL METALS ARE CONDUCTORS
400
A group of students were studying the physical properties of the four objects below.
The students performed tests on the objects. Which of these objects would be attracted to a magnet?
Iron ring
400
Which of these substances when mixed together will form solutions?
Select two correct answers.
A. sand and salt
B. salt and water
C. sand and water
D. sugar and water
E. sugar and salt
B. salt and water
D. sugar and water
500
Aidan worked with his science group to explore density with soap, oil, and water. Which list below shows the substances in order of least to greatest density?
A. Oil, soap, water
B. Soap, water, oil
C. Oil, water, soap
D. Water, oil, soap
C. Oil, water, soap
500
Name 3 items that are not soluble to water.
Answer may vary.
500
Which headings can students BEST use to complete the list
Rubber, Plastic, Wood, Pencil, Glass
A. Magnetic
B. Conductors
C. Insulators
D. Water soluble
C. Insulators
500
A student is investigating how mixtures can be separated.
Which of the following combinations will be easiest to separate with a magnet?
Salt and sand
Sand and iron nails
Aluminium cans and sand
Salt and aluminium cans
Sand and iron nails
500
A teacher was demonstrating the physical properties of matter. She combined sand, iron filings, and water. The combination of these ingredients maintained their physical properties. Therefore, this combination is a
Mixture