4th grade Science
8 units matched to the Arizona Academic Standards.
Focus areas
- Energy, electric currents and magnets
- Rocks, fossils, erosion and natural hazards
- Renewable resources and survival over time
Units
Unit 1
Energy, Speed & Collisions
Practices how an object's speed relates to its energy, what happens to energy when objects collide, and devices that change energy from one form to another.
Learning standard: 4.P4U1.1 · how a system transfers energy from one object to another
Unit 2
Waves & Codes
Practices how waves have amplitude and wavelength and can make objects move, and how patterns like codes, flashes and digital signals carry information.
Learning standard: 4.P4U1.1 · waves that carry energy from place to place without the objects touching
Unit 3
Circuits at Work
Practices the parts a working electrical circuit needs (an energy source, wires, a load and a closed path), open and closed circuits, switches, conductors and insulators, and how electrical energy is changed into motion, light, sound or thermal energy.
Learning standard: 4.P4U1.2 · how electric currents move energy from place to place
Unit 4
Magnet Inventions
Practices using what magnets do to solve simple design problems, such as a latch or a sorter, by setting criteria and constraints and running fair tests that change one thing at a time.
Learning standard: 4.P2U1.3 · magnetic forces
Unit 5
Pushes, Pulls & Forces
Forces as pushes and pulls, contact and non-contact forces (gravity, magnetism, static electricity), friction, how bigger forces change motion more, and helmets and seat belts as safety devices.
Learning standard: 4.P2U1.3 · magnets, and forces that act without touching
Unit 6
Rock Layers & Erosion
Practices how water, ice, wind and plants break down and move rock, and how patterns in rock layers and fossils show how a landscape changed over time.
Learning standard: 4.E1U1.7; 4.E1U1.6 · rock types, fossils and landforms as evidence that Earth changes, and weathering and erosion
Unit 7
Energy Resources
How electricity is made from renewable resources (sunlight, moving water, wind) and nonrenewable ones (coal, oil, natural gas, uranium), and the trade-offs of each, with Arizona examples: solar farms, the Palo Verde nuclear plant and the dams on the Colorado River.
Learning standard: 4.P4U3.4 · the use and impact of renewable and nonrenewable resources to generate electricity
Unit 8
Natural Hazards
Earthquakes and seismic waves, volcanoes, floods and other natural hazards, and designs that lessen their effects, with Arizona examples: monsoon flash floods, dust storms and wildfire.
Learning standard: 4.E1U2.10; 4.E1U1.5 · designing solutions to minimize the effects of natural hazards, and seismic waves and their effect on Earth
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