Grudgeball Review Game Questions

• Heat energy reduced atom movement, lowering mass

• Some atoms were destroyed but energy compensated

• Atoms rearranged into new substances but the total number of atoms remained constant

• Gas produced in the reaction escaped unnoticed

Tags

NGSS.MS-PS1-5

A student compares the reactants and products in the equation: C6H12O6 + 6O2 → 6CO2 + 6H2O. Which claim is supported by the model?

• Photosynthesis creates more atoms in the products than in the reactants

• Atoms from the reactants appear in different combinations in the products

• The product molecules contain fewer total atoms

• Oxygen atoms disappear during the process

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

A teacher spills some powder during a reaction and observes a mass decrease. Which statement best explains this?

• Mass decreased because atoms were converted to energy

• Open systems allow matter to escape, preventing accurate mass measurement

• Chemical reactions always cause mass loss

• Products weigh less than reactants

Tags

NGSS.MS-PS1-5

• Mass varies depending on reaction type

• Mass is conserved only when the system prevents matter from entering or escaping

• Open systems increase energy and reduce mass

• Reactions in closed systems produce fewer atoms

Tags

NGSS.MS-PS1-5

In photosynthesis, the mass of a tree increases over time. Which statement BEST explains this increase?

• Soil particles become part of the tree’s trunk

• Carbon dioxide and water are rearranged to form glucose, increasing stored mass

• Sunlight adds mass to plant cells

• Oxygen gas reacts to form solid material

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Which chemical equation BEST demonstrates conservation of mass?

• CH4 + O2 → CO2 + H2O2

• NaCl → Na + Cl2

• 2H2 + O2 → 2H2O

• H2 + Cl2 → H2Cl

Tags

NGSS.MS-PS1-5

A star has high luminosity but low surface temperature. Where would it most likely be located on the HR diagram?

• Lower left

• Upper right (Red Giant region)

• Upper left

• Lower right

Which factor MOST determines whether a star ends its life as a white dwarf, neutron star, or black hole?

• Distance from Earth

• Color of the star

• Temperature during main sequence

• Original mass of the star

A student claims that two stars with similar luminosities but different temperatures must be the same size. Which evidence disproves this claim?

• Hot stars emit blue light

• Cool giants can have the same luminosity as hot main-sequence stars because size differs

• Size does not affect brightness

• Temperature determines luminosity exclusively

Which sequence correctly shows the life cycle of a medium-mass star like the Sun?

• Nebula → Main Sequence → Black Hole

• Nebula → Protostar → Main Sequence → Red Giant → White Dwarf

• Nebula → Giant → Neutron Star

• Red Giant → Protostar → Main Sequence

Tags

NGSS.HS-ESS1-3