
Why do ducklings swim in a line behind their mother?
+ Two reading levels available
+ Interview with the researcher
+ Links to lesson plans about mechanical waves and friction
+ Two reading levels available
+ Interview with the researcher
+ Links to lesson plans about mechanical waves and friction
+ Audio version of article
+ Links to epigenetics lesson plans
+ Introductory video on endocrine disrupting chemicals
+ Audio version of article
+ Links to air quality lesson plans
+ Interviews with the researcher
+ Lesson idea video on the greenhouse effect
+ Article translated into Bulgarian and Chinese
+ Audio version of article
+ Lesson idea based on the article
+ Interview with the researcher
+ Article translated into Bulgarian
+ Introductory video on the Atlantic puffin
+ Article translated into Spanish
+ Link to a mapping lesson plan
+ Introductory video on selective breeding
+ Links to natural selection and selective breeding lesson plans
+ Introductory video on a guided mountain climb
+ Links to biodiversity lesson plans
+ Introductory video on woodpeckers
+ Article translated into Spanish
+ Link to keystone species lesson plan
+ Introductory videos on Golden eagles
+ Link to a population’s sample and total count activity