Pre/Post Test 2023

The best reason for a scientist to accept a specific theory is ____________,

• to obtain funding for the research

• that research and observations support the theory

• because there can only be one correct theory

• to gain recognition as a great scientist

Which of the following is an example of an element?

• Argon

• Water

• Salt

• Tea

What type of graph would be most appropriate to represent the amount of money the school spent on computers over time?

• Pie Graph

• Bar Graph

• Line Graph

• Histogram

What is the charge of a proton?

• positive (+1)

• neutral (0)

• negative (-1)

What is the charge of a neutron?

• positive (+1)

• neutral (0)

• negative (-1)

What is the charge of an electron?

• positive (+1)

• neutral (0)

• negative (-1)

Which box contains ONLY chemical properties of matter?

• Acidity

  State of Matter

• Malleable

  Soluble

• Reactive

  Flammable

• Flammable

  State of Matter

Which of the following are characteristics of a GROUP on the periodic table?

• have the same number of protons

• represented by rows 1 - 7

• have different physical properties

• have the same number of valence electrons

All atoms of the same element contain the same number of

• protons

• neutrons

• electron clouds

• mass

What is the atomic number for sodium?

• 22.99

• 11

• 12

• Na