Scientific Theory Quiz

Which of the following is an example of a scientific theory?

• The solution turned orange as the reaction progressed.

• I predict that the longer the gum is chewed, more of a decrease in mass will be observed.

• I heated the sample for 5 minutes.

• The total mass remained the same during the reaction because the container was kept closed, and no gases were able to escape.

Tags

NGSS.HS-PS1-7

Which of the following IS NOT absolutely necessary in a conclusion of a lab report?

• Summary of the experimental results including data.

• A detailed description of the procedure.

• A restatement of the hypothesis, and whether the hypothesis is supported or rejected.

• Reasoning for why the hypothesis is supported or rejected.

The number 608,000 is put into scientific notation. Which is the correct value?

• 6.08 x 10^3

• 6.8 x 10^5

• 6.08 x 10^-5

• 6.08 x 10^5

Which of the following is NOT in correct scientific notation?

• 6.02 x 10^23

• 4 x 10^-76

• 0.6 x 10^40

• 9.9999 x 10^4000

Convert 3.7 meters into centimeters.

• 3700 cm

• 370 cm

• 0.037 cm

• 0.0037 cm

Convert 22 ml into liters.

• 220 liters

• 2.20 liters

• 0.22 liters

• 0.022 liters

Which scientist discovered electrons, leading to advancements from Dalton’s atomic theory?

• Thomson

• Rutherford

• Bohr

• Mendeleev

Which of the following is a part of John Dalton’s atomic theory?

• Matter is made of tiny, indivisible particles called atoms.

• Atoms of the same element are identical.

• Atoms can be rearranged during a chemical reaction.

• Atoms contain protons and neutrons in the nucleus.

Tags

NGSS.HS-PS1-7

Atoms that have either a positive or negative charge are called

• Isotopes

• Ions

• Cations

• Anions

Isotopes are atoms of the same element that differ only in the number of __________.