Which of the following could be an observation in an investigation?

A. Not all ceramics can conduct electricityB. The new ceramic does not conduct electricity.C. By adding iron powder, ceramics can be made to

conduct electricity.D. At high temperatures, the new ceramic will

probably conduct electricity.

#1

Which of the following could be an observation in an investigation?

B. The new ceramic does not conduct electricity.

#1

A scientist wants to add a particular volume of sulfuric acid to a beaker. Which of the following would be the best measuring instrument to use?

A. BalanceB. Test tubeC. ScaleD. Graduated cylinder

#2

A scientist wants to add a particular volume of sulfuric acid to a beaker. Which of the following would be the best measuring instrument to use?

D. Graduated cylinder

#2

Gerald wants to find out how temperature affects the volume of a liquid. Which pieces of equipment

will he need?

A. Graduated cylinder and beakerB. Thermometer and meter stickC. Thermometer and pan balanceD. Graduated cylinder and thermometer

#3

Gerald wants to find out how temperature affects the volume of a liquid. Which pieces of equipment

will he need?

D. Graduated cylinder and thermometer

#3

Which of these best defines mass?

A. The amount of space occupied by an objectB. The distance between two pointsC. The quantity of matter in an objectD. The interval between two events

#4

Which of these best defines mass?

C. The quantity of matter in an object

#4

Which of the following is a statement about something that happens in nature which seems to be

true all of the time?

A. theoryB. Scientific lawC. hypothesisD. conclusion

#5

Which of the following is a statement about something that happens in nature which seems to be

true all of the time?

B. Scientific law

#5

Students drop objects from a height and measure the time it takes each to reach the ground. What is the

dependent variable in this experiment?

A. Falling timeB. shoeC. Drop heightD. paper

#6

Students drop objects from a height and measure the time it takes each to reach the ground. What is the

dependent variable in this experiment?

A. Falling time

#6

Which statement about elements is FALSE?

A. All atoms in an element are alikeB. There are about 1,000 elements found in natureC. Some elements have been made in laboratoriesD. Zinc, copper, and iron are elements.

#7

Which statement(s) about elements is TRUE?

A. All atoms in an element are alike

C. Some elements have been made in laboratoriesD. Zinc, copper, and iron are elements.

#7

CaCO3 is an example of which type of material?

A. elementB. mixtureC. compoundD. colloid

#8

CaCO3 is an example of which type of material?

C. compound

#8