Science Assessment Flashcards

According to the law of conservation of mass, what happens to the total mass of reactants during a chemical reaction?

Answer: It stays the same as it equals the mass of products

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Which type of reproduction produces offspring that are genetically identical to the parent?

Answer: Asexual reproduction

Asexual reproduction involves only one parent and produces genetically identical offspring (clones).

Earth's tectonic plates move because of convection currents in which layer?

Answer: Mantle

Heat-driven convection currents in the mantle cause tectonic plates to move.

A student measures the volume of an irregularly shaped rock by dropping it into a graduated cylinder with water. The water level rises from 30 mL to 42 mL. What is the rock's volume?

Answer: 12 mL

The rock's volume equals the difference in water levels: 42 mL − 30 mL = 12 mL.

Which best describes how traits are passed from parents to offspring?

Answer: Through genes carried on chromosomes

Genetic traits are inherited through genes located on chromosomes passed from parents to offspring.

A cold air mass from Canada moves into Michigan, causing temperatures to drop. The boundary between this cold air and warm air is called a:

Answer: Cold front

A cold front occurs when a cold air mass moves in and pushes under a warmer air mass, often causing rapid temperature drops.

Which type of energy is stored in a compressed spring?

Answer: Elastic potential energy

A compressed spring stores elastic potential energy, which is released when the spring returns to its original shape.