Seventh Grade Projects, Lessons, Activities (Page 74)

Aerodynamics of a Football

Science Fair Project Idea

Scientific Method

How much difference does the spiraling motion of a well-thrown football make on the distance of the throw (compared to wobbling, or end-over-end motion of the ball)? Think of a way to reproducibly produce the desired ball motion and launch it with a constant force to find out. (For more information on the physics, see Gay, 2004.) Read more

Aerodynamics of Air Hockey

Science Fair Project Idea

Scientific Method

If you have an air hockey table, you know that the puck floats on a thin cushion of air when the table is turned on. With little friction, the puck can travel very fast. How much lift force is created by the air? Add small amounts of weight to the puck and see when it no longer floats to measure the lift force. How many air holes (on average) support the puck? How much force is generated by each air hole? Will a puck with a larger surface area, supported by more air holes (on average),… Read more

Air Pressure, It's in the Bag

Lesson Plan Grade: 6th-12th

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"Vacuum sealed" © 2010 Windell Oskay In this activity, students are asked to create a change in air pressure using a garbage bag and vacuum cleaner, then create an illustration, model or concept map that explains what is happening. This activity is part of the KQED Engineering Is: Bringing Fish Up from the Deep e-book. The e-book explores the science and engineering principles behind the California Academy of Sciences' portable… Read more

Algae String Chemistry and Design

Lesson Plan Grade: 6th-8th

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These lessons use open-ended exploration to introduce students to biopolymers and the chemistry behind cross-linking. Students will draw inspiration from biology and use authentic scientific practices to design and create colorful string creations from a natural polymer, alginate. Learning Objectives Students will: Engage in authentic science practices through open-ended exploration. Create a string using polymers harvested from living algae. Manipulate the properties of a… Read more

Algae String Mizuhiki Knots

STEM Activity

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Cultures around the world have developed knots for many uses. For example, the Inca people used knotted cords called Quipu for collecting data, keeping calendars, and even military organization. In Japan, knots are used in celebrations, food prep, and garments. Elaborate paper Mizuhiki ones, such as the examples in this activity are tied to mark important life events. Educators, a lesson plan is also available for this topic. Read more

Altitude and Weather

Science Fair Project Idea

Scientific Method

As you move up or down in altitude or elevation, the temperature and pressure will change. This is particularly striking if you live near a mountain range. During the summer, at low altitudes you may have temperatures in the 80's or 90's and still be able to see snow on mountain peaks at high altitude. You can test the effect of altitude by comparing temperature data from weather stations at high and low altitudes. You can test the effect of elevation by making your own weather balloon and… Read more

An Illumination Investigation

Lesson Plan Grade: 6th-12th

Analog vs. Digital Signals

Lesson Plan Grade: 6th-8th

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We hear the word "digital" all the time—digital technology, digital device, digital TV, etc. But what does it actually mean? In this lesson plan, your students will learn how digital signals allow us to reliably transmit and store information. Read more

NGSS Performance Expectations:

MS-PS4-3. Integrate qualitative scientific and technical information to support the claim that digitized signals are a more reliable way to encode and transmit information than analog signals.

Antioxidants

Science Fair Project Idea

Scientific Method

Antioxidants have become very popular in the news lately for their potential health and anti-aging properties. Antioxidants work by preventing oxidation reactions that produce free-radicals which can cause harm to the body. Try testing different vitamins for antioxidant activity. How do vitamins A, B, C, and E compare? Do some vitamins have more antioxidant activity than others? What are some other sources of antioxidants? Try testing extracts from proposed sources of antioxidants like coffee,… Read more

Apple Genetics: A Tasty Phenomena

Lesson Plan Grade: 6th-8th

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Using the context of apples, students will apply their knowledge of heredity and genetics to distinguish between sexual and asexual reproduction as they explain how new varieties of apples are developed and then propagated to meet consumer demand for a tasty, uniform, consistent product. Read more

NGSS Performance Expectations:

MS-LS4-4. Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals' probability of surviving and reproducing in a specific environment.
MS-LS4-5. Gather and synthesize information about technologies that have changed the way humans influence the inheritance of desired traits in organisms.

Seventh Grade Projects, Lessons, Activities (1,070 results)

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