MatterAtoms and Elements Review: An atom is the smallest object that retains the properties of an element. In this concept, you will review the basic concepts of Atomic Theory and atomic structure. Characteristic Properties of Matter: All objects maintain a certain color, odor, density, and reactivity regardless of their sample size. This concept will show you how an objects physical and chemical properties make up its everyday traits. Changes in States: When you freeze liquid water, it becomes a solid. This concept will teach you more about how temperature and pressure can cause matter to change states. | 21 hours |
Heat and TemperatureRadiation: Heat traveling through empty space is known as radiation. In this concept, you will how heat is transmitted from objects like the Sun. Thermal Expansion and Contraction: When you apply a flame to the lid of a sealed food jar, the heat of the flame will loosen the lid's molecules, causing the lid to expand and making it easier to open. When the lid cools down, however, its molecules will contract, causing the lid to shrink back to its normal size. In this concept, you will learn how an object's temperature causes it to expand or contract. Conduction: Conduction is the process by which heat or electricity is transmitted through a substance when there is a difference in temperature. In this concept, you will learn how different objects conduct heat. Heat and Temperature: Temperature is a measurement of the kinetic energy in a substance. Heat is energy that can move from a warmer object or location to a cooler one. This concept will further illustrate the difference between heat and temperature. Convection: Convection is the transfer of heat energy through the movement of air, water, or even solid rock. This concept will guide you through the different ways in which convection can occur. | 21 hours |
Light EnergyColor and the Electromagnetic Spectrum: Humans see light frequency as color, but only a very small range of frequencies in the electromagnetic spectrum. In this concept, you will learn how a wave’s wavelength or frequency determines if light visible or invisible. Reflection: Light bounces off a mirror in a predictable pattern—a reflection—because the surface is very smooth. In this concept, you will learn about reflection. Transmission and Absorption: Light can move through empty space and clear air easily, but it gets absorbed by translucent and opaque materials. In this concept, you will learn how light is transmitted and absorbed. Beyond Visibility: We rely on microwaves to cook food, radio waves to hear music and infrared frequencies to feel heat. In this concept, you will learn about gamma rays, ultraviolet rays, and other frequencies. | 21 hours |
Sound EnergyTransmission, Reflection, and Absorption: Water conducts sound waves more efficiently than air so the songs whales sing can travel a great distance. In this concept, you will learn how sound is transmitted, reflected, and absorbed. Volume and Pitch: Sound gets louder when amplitude is larger, and wavelength affects time between sounds. In this concept, you will learn more about sound and how wave frequency affects pitch. Hearing Process: The small, fragile parts of the ear help us process the air waves that create sound. This concept will help you learn more about how the hammer, stirrup, and anvil of the ear process sound waves. | 21 hours |
Essential Living ProcessesCellular Respiration: Organisms use cellular respiration to provide them with the energy they need for life processes. In cellular respiration glucose is reacted with oxygen to produce carbon dioxide and water. This reaction releases energy. The reason you eat and breathe is because your cells need nutrients so they can make energy. In this concept, you will learn how your body uses cellular respiration to make energy. Photosynthesis: Photosynthesis is a chemical reaction that uses light, carbon dioxide, and water to make glucose, oxygen. Photosynthesis occurs in the chloroplasts of plant cells and other photosynthetic cells. Chloroplasts contain a pigment called chlorophyll that allows photosynthetic cells to carry out photosynthesis. Only plants with chlorophyll can make their own energy from carbon dioxide and sunlight. This process is responsible for all of the energy in the food chain, and we breathe the waste product in the form of oxygen. | 21 hours |
Investigating Living ThingsOrganism's Response to the Environment: All organisms need to respond to stimuli in order to be in balance with their environment. This concept will discuss how organisms adapt to environmental changes and show you why it is important for them to respond to new and different situations. Plants: Unlike animals, plants can make their own food through the process of photosynthesis and are incapable of moving about. In this concept, you will learn more about plants. | 21 hours |
Human Impact on the EnvironmentPollution: Pollution is the contamination of the environment with substances, noise or light, that are harmful to living organisms. Scientists detect and monitor pollution by conducting tests and by observing impacts on organisms. Planning and preventative measures can stop pollution. Pollution can also be remediated. It comes from many sources, and it’s usually trash or harmful chemicals, but sometimes too much of a good thing can pollute. In this concept, you will learn about the sources of pollution as well as the harmful effects that pollution can have on the environment. | 21 hours |
Earth's StructurePlate Tectonics: The Earth's lithosphere is broken into sections called tectonic plates. Convection within the asthenosphere cause the plates to move. Tectonic plate movement creates earthquakes, volcanoes, fold mountains and ocean basins. Earth’s crust consists of a number of plates, immense slabs of rock that are always in motion—crashing together, pulling apart, and grinding past each other. In this concept, you will learn how these very slow movements build and rebuild (the “tectonic” part) the face of the Earth. Structure Based on Composition: The Earth's crust, mantle, and core are all made up of different materials. In this concept, you will learn more about the layers of the Earth, their characteristics, and how they change over time. | 21 hours |
Exploring SpaceSpace Exploration: Despite several advances in technology, the human race still knows very little about the Universe. In this concept, you will learn how scientists are using technology to unveil the great mysteries of the space that surrounds our Earth, our Solar System, and beyond. Modern Astronomy: Modern telescopes and other instruments let us peer deep into space to learn about the universe. In this concept, you will learn how modern scientists can get a better understanding of space using telescopes. Future of Space Exploration: Scientists are finding new ways to gain a better understanding of our universe every day. In this concept, you will learn about some of the tools that scientists use to study the universe and how those tools are changing every day. | 21 hours |
The Earth-Sun-Moon SystemPhases: The moon waxes and wanes—appears to grow larger and smaller—during the course of a month. The moon’s size remains constant, but its changing position creates the different sunlit portions we see on Earth. In this concept, you will learn about the different phases of the moon. Rotation, Orbits, and the Seasons: Earth travels closer to the sun in January than it does in July, due to the elliptical shape of Earth’s orbit. But it’s colder in the Northern Hemisphere in January because the axis of the Earth tilts it away from the sun during the daily rotation; in July, the Northern Hemisphere is tilted toward the sun. In this concept, you will learn how Earth's rotation and orbit affects the seasons. Eclipses: In a lunar eclipse, the shadow of the Earth blocks most sunlight from the moon. In a solar eclipse, the shadow of the much smaller moon can block sunlight from the Earth because the sun is so far away. In this concept, you will learn about eclipses. Tides: That giant sand castle you built yesterday is a shapeless blob today—the work of tides, the daily rise and fall of ocean waters. In this concept, you will learn how the moon’s gravitational pull and Earth's rotation cause high and low tides to occur. Earth: Although sci-fi movies want us to believe otherwise, Earth is the only planet that supports the kind of life-forms we know. Every 24 hours the Earth makes a complete rotation on an invisible axis, causing day and night. This concept will help you learn more about the Earth. | 21 hours |
Earth's SoilOver centuries, rocks weather into tiny pieces and combine with fragments of decayed plants and animals to form soil. A deep hole in your yard will reveal layers of developing soil, and eventually, the parent rock. In this concept, you will examine soil changes. | 21 hours |
Final Assessment |
ProjectThis project is worth 30% of the final grade. | 5 hours |
Total Time | 110 hours |