3rd Grade (SCI) Science Standards [LS3] Heredity: Inheritance and Variation of Traits
SCI-03.LS3.02 Use evidence to support the explanation that the expression of traits can
be influenced by the environment.
Clarification Statement: Examples of the environment affecting a trait could include normally tall plants grown with insufficient
water are stunted. A person born healthy based on their genetics could suffer from the exposure to toxic
chemicals Disciplinary Core Ideas Other characteristics result from individuals’
interactions with the environment, which can
range from diet to learning. Many
characteristics involve both inheritance and
environment.
Environmental factors such as toxins may
affect the traits that an organism develops
Proficiency Scale