Science Study Material

Science Study Material

Which statement BEST describes Solutions A and B?

• a) the red particles represent the solute.

• b) the red particles represent the solvent.

• c) Solution A has a higher concentration of particles than Solution B

• d) Solution B has a higher concentration of particles than Solution A.

Solutions are (choice 1) mixture of two or more substances that spread out evenly and do not settle at the bottom of a container

• a) Compound

• b) Suspension

• c) heterogenous

• d) homogenous

A group of students combined the following items in a bowl: Peanuts, Pretzels; M&M's; Raisins: What type of combination did the students create?

• a) a compound

• b) a solution

• c) an element

• d) a mixture

Which statement supports the answer to Part A

• a) a chemical change took place

• b) the ingredients were unable to be separated

• c) a physical change took place

• d) Each ingredient kept its original properties

Which statements BEST describe the properties of substances in a mixture? (Select only TWO choices)

• able to chemically combine

• retains physical properties

• unable to chemically combine

• contains dissolved particles

• unable to retain physical properties

A class of 5th graders was given the task of building a boat with a base area of 40cm2. Each boat had to remain afloat while carrying a container of bolts and screws. The students were given the following: ( teacher will read)

• Modeling clay

• roll of masking tape

• roll of paper towels

• gallon of water

• container of bolts and screws

what additional supplies would prove helpful in the student's design, flotation, and loading of their boats?

• a) calculator to compute density

• b) metric graduated cylinder to measure volume

• c) metric ruler to measure the base of the boat

• d) metric scale to measure density

• e) metric balance to measure mass

• f) metric scale to measure weight

Which statements BEST describe the properties of substances in a mixture?

• a) able to chemically combine

• b) retains physical properties

• c) unable to chemically combine

• d) contains dissolved particles

• f) unable to retain physical properties

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A fresh egg will sink to the bottom of a bowl of water, while a stale egg will move to the surface of the water; Which of the following BEST supports the statement above?

• a) the density of the egg decreases as it becomes stale

• b) the density of the egg increases as it becomes stale

• c) Some of the stale egg's shell falls off, allowing it to float

• d) Some of the contents of the egg escapes and increases the density of the water

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