3rd Grade Science Units

science kids


The Astronomy unit discovers the sun, the moon, the planets, the stars, and more!  We begin the unit by considering theories from ancient times to understand how different civilizations viewed the sky.  Astronomers will learn and observe the eight phases of the moon, and use new vocabulary words such as waxing, waning, crescent, gibbous, orbit, rotate, revolve, constellation and more.  Through many activities our understanding of the universe will grow. A highlight to this unit is the Star Lab!  Through a grant from the WWPEA, students will observe the night sky while in school!


In this unit, students will identify five unknown solids by conducting tests to discover the physical and chemical properties. Students will expand their understanding through experimentation, forming hypothesis based on data collected and analyzing their results. Through their understanding of these chemicals and their properties, students apply this knowledge to their daily interaction with chemicals.

human bodyHuman Body Systems human body girl

This unit will introduce the students to the organs that encompasses each human body system and focuses on how our systems function together to keep us alive!  In addition to discovering the body systems, we also learn about the nutrition, exercise and personal safety.  Exploring using the senses is integral to all science units in third grade as the students develop their observational skills and record their findings using descriptive language.  The following systems will be studied: 
*skeletal and