Eratosthenes

Students use principles of geometry to measure the circumference of the Earth. In this applied geometry lesson plan, students use mathematics to determine scientific information. They make measurements, calculate the central angle,...

Geology rocks — literally! A geology chapter offers eleven activities at four different levels. Scholars enjoy completing hands-on experiments before applying critical thinking skills following a share, process, generalize, apply,...

Students explore the possibility of being on Mars and being able to identify the Earth.  In this space lesson students complete a set of calculations to see if this is possible. 

Create an edible model of the Earth using crispy rice cereal, marshmallows, and chocolate, yum! Model layers include the outer core, inner core, mantle, and crust. 

Need a hands-on activity that tests your scholars' knowledge of the relationship between Earth and the moon? This interactive has it on lockdown! Science scholars manipulate the moon in its path around Earth, then answer multiple-choice...

Does assessing Earth Science vocabulary making your head spin? Test scholars' knowledge of revolving and rotating using an interactive tool. The movement of a new planet and its moon is in their hands, allowing them to explore...

Students explore the sun, its structure, how big it is and how far away it is.  In this solar system lesson students complete a lab activity on dew point and weather.

High schoolers explore the possibility of an asteroid hitting planet earth. In this planetary lesson students complete a lab activity to see the effects of an asteroid hitting earth and compare different craters.

Students study the layers of the Earth.  In this Earth's crust instructional activity students complete an activity, divide into groups and diagram and define given terms. 

Science students often have difficulty thinking about large spatial scales. The purpose of the exercise is to redo Eratosthenes' calculation of the radius of the Earth using data from to sites in ancient Egypt. The excercise teaches...