FCAT Physical Science Review

Ms. De made a pitcher of lemonade. Which diagram BEST represents the liquid water molecules?

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If you were to take a radio to the moon, which of the following would correctly describe the changes to its mass and weight?

• Its mass and weight would not change.

• Its mass would increase, and its weight would remain the same.

• Its weight would increase, and its mass would remain the same.

• Its weight would decrease, and its mass would remain the same.

Lithium (Li), sodium ( Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr) are in the same column in the periodic table? Why are these elements in the same column in the periodic table?

• They have the same properties.

• They have atoms of the same size.

• They have the same number of protons.

• They have the same number of neutrons.

Which is a physical property?

• oxidation

• density

• flammability

• combustibility

A student is given two different objects, a marble and a cube, that appear to be made of the same substance. The student did some measurements of the objects and recorded the measurements in the table. Using the student's measurements, determine if the two objects are indeed made of the same substance. The formula for density is D = M / V.

• No. The objects are different substances because their masses are different.

• No. The objects are different substances because their densities are different.

• No. The objects are different substances because their volumes are different.

• Yes. The objects are the same substance because they have the same density.

Fresh milk has several parts that a farmer can separate and sell. A farmer removes the top layer of fat from fresh milk. Why is the layer of fat on top?

• The fat does not mix well with the other parts of the milk.

• The fat has a lower density than the other parts of the milk.

• There is less fat in compared to other parts of the milk.

• There other parts of the milk come out of the cow before the fat.

The physical property that determines how easily heat and electricity pass through a material is _____.

• conductivity

• density

• hardness

• weight

How many neutrons would you expect an atom of gold to have?

• 79

• 196.967

• 118

• 198

Physical properties can be used to compare and classify substances. The process below demonstrates a physical property of sugar. Which of the following physical properties of sugar is demonstrated by the process?

• Solubility

• Density

• Thermal conductivity

• Melting point

Which is a compound?

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