7.1: Energy provides the ability to do work and can exist in many forms.

7.1.1: Conduct simple experiments that show and explain how forces work to change the motion of an object.

Charge Launcher
Force and Fan Carts

7.1.2: Calculate work done on an object as force or distance varies.

Charge Launcher
Force and Fan Carts

7.1.3: Explain in writing how the six simple machines make work easier but do not alter the amount of work done on an object, and demonstrate how everyday objects function as simple machines.

Ants on a Slant (Inclined Plane)
Levers
Pulley Lab
Torque and Moment of Inertia
Wheel and Axle

7.1.4: Determine ways to modify a simple machine (inclined plane, pulley and lever) to improve its mechanical advantage.

Ants on a Slant (Inclined Plane)
Atwood Machine
Levers
Pulley Lab
Torque and Moment of Inertia
Wheel and Axle

7.1.6: Design and create a working compound machine from several simple machines.

Ants on a Slant (Inclined Plane)
Levers
Pulley Lab
Torque and Moment of Inertia
Wheel and Axle

7.1.7: Use a diagram or model of a moving object (roller coaster, pendulum, etc.) to describe the conversion of potential energy into kinetic energy and vice versa.

Air Track
Energy Conversions
Energy of a Pendulum
Inclined Plane - Sliding Objects
Pendulum Clock
Period of a Pendulum
Potential Energy on Shelves
Roller Coaster Physics
Simple Harmonic Motion

7.1.8: Discuss different forms of energy and describe how they can be converted from one form to another for use by humans (e.g., thermal, electrical, light, chemical, mechanical).

Advanced Circuits
Energy Conversion in a System
Energy Conversions
Phase Changes

7.1.9: Trace energy conversions that occur in the human body once food enters and explain the conversions in writing.

Food Chain
Prairie Ecosystem

7.1.10: Calculate potential and kinetic energy and relate those quantities to total energy in a system.

Air Track
Energy Conversion in a System
Energy Conversions
Energy of a Pendulum
Food Chain
Inclined Plane - Sliding Objects
Period of a Pendulum
Potential Energy on Shelves
Roller Coaster Physics
Simple Harmonic Motion

7.2: Many organisms, including humans, have specialized organ systems that interact with each other to maintain dynamic internal balance.

7.2.1: Compare and contrast single-celled organisms with multicellular organisms.

Paramecium Homeostasis

7.2.2: Illustrate and describe in writing the structure and the functions of the following: cell membrane, cytoplasm, mitochondria and nucleus of an animal cell.

Cell Energy Cycle
Cell Structure
Osmosis
Photosynthesis Lab

7.2.3: Explain how the structure and function of multicellular organisms (animals) depends on the interaction of cells, tissues, organs and organ systems.

Circulatory System

7.2.5: Differentiate between the structures and range of motion associated with ball, socket and hinge joints and relate human joints to simple machines.

Ants on a Slant (Inclined Plane)
Levers
Paramecium Homeostasis
Pulley Lab
Torque and Moment of Inertia
Wheel and Axle

7.2.8: Label the major parts of the human circulatory system and explain in writing the function of each part (heart, veins, arteries and capillaries).

Circulatory System

7.2.9: Design and conduct controlled variable experiments to analyze the interaction between the circulatory and respiratory systems as the demand for oxygen changes.

Circulatory System

7.3: Landforms are the result of the interaction of constructive and destructive forces over time.

7.3.2: Explain how Earth?s internal energy is transferred to move tectonic plates.

Building Pangaea
Nuclear Decay
Plate Tectonics

7.3.3: Demonstrate the processes of folding and faulting of the Earth?s crust.

Plate Tectonics
Solar System

7.3.4: Correlate common geological features/events (deep sea trenches, mountains, earthquakes, volcanoes) with the location of plate boundaries.

Earthquake - Determination of Epicenter
Earthquake - Recording Station
Plate Tectonics

7.4: Technology allows us to improve food production and preservation, thus improving our ability to meet the nutritional needs of growing populations.

7.4.1: Investigate and describe in writing different types of microbes and the environmental conditions necessary for their survival.

Prairie Ecosystem

7.4.3: Illustrate and describe the structural differences between bacterial and animal cells.

Cell Structure

7.4.4: Discover and discuss how humans use bacteria to produce food and identify examples.

Prairie Ecosystem

7.4.5: Compare and contrast the role of bacteria in food production and food spoilage.

Prairie Ecosystem