Analyze and interpret data to explain that matter of any type can be subdivided into particles too small to see and, in a closed system, if properties change or chemical reactions occur, the amount of matter stays the same.
In 3rd grade, students ask questions and conduct experiments to explore the world around them. In this unit, students unpack the phenomena of tiny particles called atoms that make up all matter in the universe. This page showcases key parts of the first lesson in this unit.
In this unit, students are introduced to the scientific process as they analyze matter in the universe and Earth’s place in the solar system. For the first lesson in this unit, they conduct an experiment to compare the masses of two different substances, analyzing how matter is never created or destroyed. Students also discuss how all matter in the universe is made up of different combinations of atoms formed from chemical reactions. This page highlights key parts of this lesson.
In this unit, students discuss the science phenomena of how matter has different properties depending on the number and kind of atoms that make it up. In this lesson, they observe how forces act on matter, focusing on how unbalanced forces cause objects to move. This page provides a high-level extract of this lesson.
In this unit, students analyze how matter cycles between the living and nonliving parts of an ecosystem. They compare plant and animal cells, figuring out how internal structures help an organism get energy. Then, in this lesson, students figure out how energy flows and matter cycles through a food web, and investigate the phenomena of how plants convert non-food sources, such as light, air, and water, into food sources. This page showcases key elements of this lesson.
