Grade 3 Science

Grade 3 Science

Course Features

Course Details

Course Overview

The Grade 3 Science course is taught Acellus instructors including Latricia Harper.  The course investigates topics in life science, earth science, and physics, as well as technology and astronomy. Engaging on-camera experiments and examples help deepen students' understanding of the concepts presented.
This course was developed by the International Academy of Science. Learn More

Scope and Sequence

Unit 1 – Plant Life This unit discusses similarities and differences between plants, different plant parts, how different plants make seeds, how seeds grow, and fossils. Unit 2 – Animal Life This unit covers vertebrates and invertebrates, animal life cycles with examples of ladybugs and black bears, animal adaptations and instincts, animal fossils, and animal tracks. Unit 3 – Animals and Plants in Ecosystems This unit discusses environments, ecosystems, and habitats, as well as grasslands, deserts, and tundra. Also covered are animal adaptations, coniferous, deciduous, and tropical forests, as well as freshwater and saltwater ecosystems, and a habitat for mold. Unit 4 – Animals and Plants Living Together This unit discusses interactions among and competition between living things. Also covered are food webs, changes and patterns of change in environments, what makes a healthy environment for humans, healthy food for humans, and how we get energy from food, as well as exercise, germs, and mushroom spore prints. Unit 5 – Water This unit discusses why water is important and how it is used. Also covered are the different states of water, the water cycle, how water can be cleaned, and what showflakes are like. Unit 6 – Weather This unit discusses clouds, the atmosphere, how to measure and predict the weather, weather maps, and pollution alerts. It also covers different kinds of storms, such as blizzards, tornadoes, and hurricanes, as well as storm watches and warnings and the effect of carbon dioxide on water. Unit 7 – Rocks and Soil In this unit students discuss differences and similarities of rocks, rock layers, and sedimentary, metamorphic, and igneous rock, as well as minerals and many ways they are used, our need for soil, and layers and types of soil.  They also discuss what animals use dirt for. Unit 8 – Changes on Earth's Surface In this unit students discuss different layers and landforms on the earth.  Students also explore volcanoes, earthquakes, weathering, and erosion. Unit 9 – Earth's Natural Resources This unit discusses natural resources, what they are and how to manage them, including conservation, landfills, reducing, reusing, and recycling. Unit 10 – Properties of Matter This unit discusses what matter is, its states, and how to measure mass, volume, density, and length. Unit 11 – Changes in Matter This unit discusses mixtures and solutions, physical and chemical changes in matter, and how we use chemical changes. Unit 12 – Forces and Motion This unit discusses motion, position, speed, force, friction, gravity, magnetism, and work. Unit 13 – Simple Machines This unit discusses the inclined plane, the wedge, the screw, the lever, the wheel and axle, and the pulley. Unit 14 – Introduction to Energy This unit introduces energy and discusses potential and kinetic energy, how energy changes form, and waves. Unit 15 – More About Energy This unit discusses heat, light, and electricity, states of matter and color. Unit 16 – Sound This unit discusses vibration, pitch, and sound waves, how humans, musical instruments, and animals make sound, how we hear sound, and how sound travels through matter. Unit 17 – Looking at the Sky This unit discusses how the earth spins, which creates day and night, and how the earth travels around the sun once each year. It also covers the phases of the moon, the constellations, and how the atmosphere gives the sky its blue color. Unit 18 – The Solar System This unit discusses the sun, the inner, outer, and dwarf planets, why there is life on Earth, and how a planet's distance from the sun determines its temperature. Unit 19 – We Use Science Every Day This unit discusses technology and computers, unexpected uses for technology, transportation tools, energy, and the arch.

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