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- Science: 3rd Grade
Pennsylvania - Science: 3rd Grade
Academic Standards | Adopted: 2012
3.1: : Biological Sciences
3.1.3.A5: : Form and Function
3.1.3.A5.1: : Identify the structures in plants that are responsible for food production, support, water transport, reproduction, growth, and protection.
Flower Pollination
Observe the steps of pollination and fertilization in flowering plants. Help with many parts of the process by dragging pollen grains to the stigma, dragging sperm to the ovules, and removing petals as the fruit begins to grow. Quiz yourself when you are done by dragging vocabulary words to the correct plant structure. 5 Minute Preview
3.1.3.B1: : Heredity
3.1.3.B1.1: : Understand that plants and animals closely resemble their parents.
Inheritance
Create aliens with different traits and breed them to produce offspring. Determine which traits are passed down from parents to offspring and which traits are acquired. Offspring can be stored for future experiments or released. 5 Minute Preview
3.1.3.B5: : Unifying Themes
3.1.3.B5.1: : Identify characteristics that appear in both parents and offspring.
Inheritance
Create aliens with different traits and breed them to produce offspring. Determine which traits are passed down from parents to offspring and which traits are acquired. Offspring can be stored for future experiments or released. 5 Minute Preview
3.2: : Physical Sciences: Chemistry and Physics
3.2.3.A1: : Properties of Matter
3.2.3.A1.1: : Differentiate between properties of objects such as size, shape, and weight and properties of materials that make up the objects such as color, texture, and hardness.
Color Absorption
Mix the primary colors of light by using red, green, and blue lights. Use pieces of colored glass to filter the light and create a wide variety of colors. Determine how light is absorbed and transmitted by each color of glass. 5 Minute Preview
Heat Absorption
Shine a powerful flashlight on a variety of materials, and measure how quickly each material heats up. See how the light angle, light color, type of material, and material color affect heating. A glass cover can be added to simulate a greenhouse. 5 Minute Preview
Mineral Identification
Observe and measure the properties of a mineral sample, and then use a key to identify the mineral. Students can observe the color, luster, shape, density, hardness, streak, and reaction to acid for each mineral. There are 26 mineral samples to identify. 5 Minute Preview
Subtractive Colors
Move spots of yellow, cyan, and magenta pigment on a white surface. As the colors overlap, other colors can be seen due to color subtraction. The color of most things you see--such as cars, leaves, paintings, houses, and clothes--are due to color subtraction. The intensity of the cyan, magenta, and yellow can be adjusted, and the RGB value at any location can be measured. 5 Minute Preview
Weight and Mass
Use a balance to measure mass and a spring scale to measure the weight of objects. Compare the masses and weights of objects on Earth, Mars, Jupiter, and the Moon. 5 Minute Preview
3.2.3.A1.2: : Differentiate between the three states of matter, classifying a substance as a solid, liquid, or gas.
Phases of Water
Heat or cool a container of water and observe the phase changes that take place. Use a magnifying glass to observe water molecules as a solid, liquid, or gas. Compare the volumes of the three phases of water. 5 Minute Preview
3.2.3.A3: : Matter & Energy
3.2.3.A3.1: : Demonstrate how heating and cooling may cause changes in the properties of materials including phase changes.
Phases of Water
Heat or cool a container of water and observe the phase changes that take place. Use a magnifying glass to observe water molecules as a solid, liquid, or gas. Compare the volumes of the three phases of water. 5 Minute Preview
3.2.3.A4: : Reactions
3.2.3.A4.1: : Use basic reactions to demonstrate observable changes in properties of matter (e.g., burning, cooking).
Phases of Water
Heat or cool a container of water and observe the phase changes that take place. Use a magnifying glass to observe water molecules as a solid, liquid, or gas. Compare the volumes of the three phases of water. 5 Minute Preview
3.2.3.B1: : Force & Motion of Particles and Rigid Bodies
3.2.3.B1.1: : Explain how movement can be described in many ways.
Free Fall Tower
Recreate Galileo's famous experiment by dropping objects off the Tower of Pisa. You can drop ping pong balls, golf balls, soccer balls or watermelons. Objects can be dropped in air or no air, with or without a parachute. The speed of each object is shown on a speedometer and a graph. 5 Minute Preview
Measuring Motion
Go on an African safari and observe a variety of animals walking and running across the savanna. Videotape the animals, and then play back the videotape to estimate animal speeds. Which animals run fastest? 5 Minute Preview
3.2.3.B2: : Energy Storage and Transformations: Conservation Laws
3.2.3.B2.1: : Explore energy’s ability to cause motion or create change.
Radiation
Use a powerful flashlight to pop a kernel of popcorn. A lens focuses light on the kernel. The temperature of the filament and the distance between the flashlight and lens can be changed. Several obstacles can be placed between the flashlight and the popcorn. 5 Minute Preview
3.2.3.B2.2: : Explore how energy can be found in moving objects, light, sound, and heat.
Radiation
Use a powerful flashlight to pop a kernel of popcorn. A lens focuses light on the kernel. The temperature of the filament and the distance between the flashlight and lens can be changed. Several obstacles can be placed between the flashlight and the popcorn. 5 Minute Preview
3.2.3.B4: : Electrical and Magnetic Energy
3.2.3.B4.1: : Identify and classify objects and materials that are conductors or insulators of electricity.
Circuit Builder
Create circuits using batteries, light bulbs, switches, fuses, and a variety of materials. Examine series and parallel circuits, conductors and insulators, and the effects of battery voltage. Thousands of different circuits can be built with this Gizmo. 5 Minute Preview
3.2.3.B4.2: : Identify and classify objects and materials as magnetic or non-magnetic.
Magnetism
Drag bar magnets and a variety of other objects onto a piece of paper. Click Play to release the objects to see if they are attracted together, repelled apart, or unaffected. You can also sprinkle iron filings over the magnets and other objects to view the magnetic field lines that are produced. 5 Minute Preview
3.3: : Earth and Space Sciences
3.3.3.A2: : Earth’s Resources/Materials
3.3.3.A2.1: : Identify the physical properties of minerals and demonstrate how minerals can be tested for these different physical properties.
Mineral Identification
Observe and measure the properties of a mineral sample, and then use a key to identify the mineral. Students can observe the color, luster, shape, density, hardness, streak, and reaction to acid for each mineral. There are 26 mineral samples to identify. 5 Minute Preview
3.3.3.B1: : Composition and Structure
3.3.3.B1.1: : Relate the rotation of the earth and day/night, to the apparent movement of the sun, moon, and stars across the sky.
Phases of the Moon
Understand the phases of the Moon by observing the positions of the Moon, Earth and Sun. A view of the Moon from Earth is shown on the right as the Moon orbits Earth. Learn the names of Moon phases and in what order they occur. Click Play to watch the Moon go around, or click Pause and drag the Moon yourself. 5 Minute Preview
Seasons: Earth, Moon, and Sun
Observe the motions of the Earth, Moon and Sun in three dimensions to explain Sunrise and Sunset, and to see how we define a day, a month, and a year. Compare times of Sunrise and Sunset for different dates and locations. Relate shadows to the position of the Sun in the sky, and relate shadows to compass directions. 5 Minute Preview
3.4: : Technology and Engineering Education
3.4.3.C1: : Design Attributes
3.4.3.C1.1: : Recognize design is a creative process and everyone can design solutions to problems.
Trebuchet
Design your own trebuchet to fling a projectile at a castle wall. All of the dimensions of the trebuchet can be adjusted, as well as the masses of the counterweight and payload. Select a target on the Launch tab, or just see how far your projectile will go. 5 Minute Preview
3.4.3.C3: : Research & Development, Invention & Innovation, Experimentation / Problem Solving and Troubleshooting
3.4.3.C3.1: : Recognize that all products and systems are subject to failure; many products and systems can be fixed.
Trebuchet
Design your own trebuchet to fling a projectile at a castle wall. All of the dimensions of the trebuchet can be adjusted, as well as the masses of the counterweight and payload. Select a target on the Launch tab, or just see how far your projectile will go. 5 Minute Preview
Correlation last revised: 9/16/2020
About STEM Cases
Students assume the role of a scientist trying to solve a real world problem. They use scientific practices to collect and analyze data, and form and test a hypothesis as they solve the problems.
Each STEM Case uses realtime reporting to show live student results.
Introduction to the Heatmap
STEM Cases take between 30-90 minutes for students to complete, depending on the case.
Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.
Multiple grade-appropriate versions, or levels, exist for each STEM Case.
Each STEM Case level has an associated Handbook. These are interactive guides that focus on the science concepts underlying the case.
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