Which of the following includes all of the subatomic particles found in the nucleus of an atom?

• Electrons and protons
• Electrons, protons, and neutrons
• Neutrons and electrons
• Neutrons and protons

Which of the following would increase total kinetic energy of a substance?

• increase mass of the substance
• increase volume of the substance
• increase temperature of the substance
• all of the other three choices

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Based on the diagram above, which statement is correct?

• All isotopes of hydrogen have different numbers of electrons in them.
• All isotopes of hydrogen have one neutron in the nucleus.
• All isotopes of hydrogen have one proton in the nucleus.
• There are the same number of protons and neutrons in every isotope of hydrogen.

Tags

NGSS.MS-PS1-1

Which of the following is an indication that a chemical change has taken place?

• the shape changes
• the substance dissolved
• a gas was produced
• phase change

Tags

NGSS.MS-PS1-2

An element that is a good conductor of heat and electricity is a ___.

• metal
• non-metal
• metalloid
• noble gas

Tags

NGSS.MS-PS3-3

The nucleus of an atom has a ___ charge.

• positive
• negative
• neutral

Which object would replace the question mark to complete the chart?

• Glass Marble
• Aluminum Can
• Rubber eraser
• Cotton sock

Tags

NGSS.MS-PS2-3

The bulb of a thermometer is placed in your mouth.  Which of the following explains why the level of the liquid rises in the thermometer?

• Hot air rises in a thermometer
• Thermometers are magic
• The liquid expands when heated
• Heat is changing a solid to a liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A material that heat or electricity cannot easily pass through is called a(n) ___.

• conductor
• resistor
• insulator
• locator 

Tags

NGSS.MS-PS3-3

A worker drops his hammer off the roof of a house. If the hammer weighs 88.2 newtons and gravity accelerates it at 9.8 m/s², What is the mass of the hammer? (force = mass x acceleration)

• 864.36 grams
• 9 grams
• about 0.1 grams
• there is not enough information to answer this question

Tags

NGSS.HS-PS2-1