Eighth Grade, Physics Projects, Lessons, Activities (Page 11)

Science Fair Project Idea

Scientific Method

Water striders (also called water bugs, pond skippers, etc.) are insects that can hop around on the surface of water (Figure 1). Unlike boats or other floating objects that are partially submerged and held up by the resulting buoyant force, water striders are held up by surface tension. Figure 1. Water striders (image credit Isaka Yoji). You can build your own water striders using thin wire (Figure 2 and summary video). Do some background research about… Read more

What Causes Lightning?

Video Lesson Grade: 6th-8th

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Lightning is a powerful display of static electricity in nature. But what is static electricity? In this lesson, students will learn about static electricity and electric fields by building a device that can detect electrical charges, called an electroscope. They will use their electroscope to investigate how well different materials can build up electric charges by rubbing them against wool. During their experiments, students will be able to demonstrate how electric fields exert forces on… Read more

NGSS Performance Expectations:

MS-PS2-5. Conduct an investigation and evaluated the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact.

A Roundabout Way to Mars

Lesson Plan Grade: 6th-8th

Students explore orbit transfers and, specifically, Hohmann transfers. They investigate the orbits of Earth and Mars by using cardboard and string. Students learn about the planets' orbits around the sun, and about a transfer orbit from one planet to the other. After the activity, students will know exactly what is meant by a delta-v maneuver!Engineering Connection Aerospace engineers must be creative when planning the best routes and methods to send a spacecraft from Earth… Read more

NGSS Performance Expectations:

MS-ESS1-2. Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.

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

Biomimicry: Echolocation in Robotics

Lesson Plan Grade: 6th-8th

Students use ultrasonic sensors and LEGO© MINDSTORMS© EV3 robots to emulate how bats use echolocation to detect obstacles. They measure the robot's reaction times as it senses objects at two distances and with different sensor threshold values, and again after making adjustments to optimize its effectiveness. Like engineers, they gather and graph data to analyze a given design (from the tutorial) and make modifications to the sensor placement and/or threshold… Read more

NGSS Performance Expectations:

MS-ETS1-4. Develop a model to generate data for iterative testing and modification of a proposed object, tool, or process such that an optimal design can be achieved.

Buoyancy Bull's-Eye

Lesson Plan Grade: 5th-8th

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"Diver and Lemon shark" © 2004 Hpm~commonswiki What helps SCUBA divers, sharks, fish, and other marine organisms stay in the water column? In this hands-on investigation, students will explore the concepts of buoyancy and mass to create a device to help an action figure stay neutrally buoyant, just like a scuba diver. Read more

NGSS Performance Expectations:

MS-PS2-2. Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.

Count the Seconds

Lesson Plan Grade: 4th-8th

Students design a device that can track a specific amount of time and indicate when that time has passed with a sound or visual signal. They iterate their designs and prototypes to improve repeatability. Learning Objectives Students will: Design and build a device that indicates when a specific amount of time has passed. Use simple machines in their device. Identify the ways in which energy is stored and transferred in their device. Iterate and improve their designs based… Read more

Cricket Wicket Knockdown Challenge for Grades 6-8

Lesson Plan Grade: 6th-8th

Teach your students about the engineering design process with this fun lesson plan. They will design and build a ball-launching machine to knock down a target. Optionally, they can enter their designs in the 2020 Engineering Challenge for a chance to win a cash prize for your school! Teachers, note that elementary school and high school versions of this lesson plan are also available. Read more

NGSS Performance Expectations:

MS-ETS1-2. Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
MS-ETS1-4. Develop a model to generate data for iterative testing and modification of a proposed object, tool, or process such that an optimal design can be achieved.
MS-PS3-5. Construct, use, and present arguments to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.

Drones in High-Tech Farming (Grades 6-8)

Lesson Plan Grade: 6th-8th

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(Image credit: by ackab1, via Flickr. Creative Commons). Students will discover the science behind how a drone works, explore how drones are used in agriculture, and program and operate a drone for the purpose of monitoring grazing sheep. Read more

NGSS Performance Expectations:

MS-ETS1-1. Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions.

Is your Physics Textbook Lying? Linear & Nonlinear Springs

Science Fair Project Idea

Scientific Method

Spoiler alert: Your physics textbook might contain an inaccurate equation. Are you shocked? Let us explain — many questions in your physics textbooks are simplifications of how things behave in the real world. For example, in physics textbooks, springs are usually modeled with the equation Force = stiffness x displacement: Equation 1: [Please enable JavaScript to view equation] … Read more

Eighth Grade, Physics Projects, Lessons, Activities (116 results)

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