Science and Technology, Grade 3

Unit 1: Material World

The properties of matter, energy, forces and motion, and how objects and machines work — the PDA's Material World.

• Describing matter: mass and weight

• Why some things sink and others float

• Physical changes keep the same matter

• Forms and sources of energy

• Sound and moving heat

• Using, saving, and changing energy

• Forces and how things move

• Simple machines that help us

• Moving parts inside machines

• How technology changes daily life

Unit 2: Earth and Space

Soil, water and weather, energy on Earth, and the Sun, Moon, and stars — the PDA's Earth and Space.

• Soil, and the quality of water, soil, and air

• Rocks, fossils, and crystals

• The water cycle

• The Sun and renewable energy

• Day and night, the Moon, and eclipses

• Stars, clouds, weather, and sky technology

Unit 3: Living Things

How living things are built, grow, feed, move, and fit into their environment — the PDA's Living Things.

• Life needs and how living things reproduce

• Kingdoms and classifying living things

• The parts of a plant and their jobs

• Animal body systems and the senses

• How plants and animals grow

• What animals eat, food chains, and food technology

• How and why animals move

• Habitats and how living things interact

• People and the environment