Students will investigate how thickness, stretch, drying time, thermal energy transfer, noncontact forces, and Newton’s Third Law affect a safe web shooter’s range and accuracy. They will use shared decisions, test data, peer feedback, and self-reflection to answer, “How can we design a safe, reliable web shooter fluid that launches consistently and lands where we aim?” Teams will design, build, test, revise, and present a final prototype that demonstrates consistent launches and accurate landings at a target distance. Each class will end with a 3-2-1 reflection naming three things learned, two problems solved, and one remaining question about the web shooter fluid.
Learning goals
Students will investigate how fluid thickness, stretch, drying time, and thermal energy transfer affect launch range, accuracy, and reliability. They will apply Newton’s Third Law to launcher motion and collisions and gather evidence of noncontact forces through safe magnetic-field tests. Collaborative teams will use test data, peer feedback, and 3-2-1 reflections to revise a safe prototype while asking, “How can we design a safe, reliable web shooter fluid that launches consistently and lands where we aim?” Students will demonstrate learning by presenting a final prototype that repeatedly launches and lands accurately at a defined target distance.
Standards
[Next Generation Science Standards] MS-PS2-1 - Apply Newton's Third Law to design a solution to a problem involving the motion of two colliding objects.
[Next Generation Science Standards] MS-PS2-5 - Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact.
[Next Generation Science Standards] MS-PS3-3 - Apply scientific principles to design, construct, and test a device that either minimizes or maximizes thermal energy transfer.
Competencies
Self Directed Learning - Students use teacher and peer feedback and self-reflection to monitor and direct their own learning while building self knowledge both in and out of the classroom.
Collaboration - Students co-design projects with peers, exercise shared-decision making, strengthen relational agency, resolve conflict, and assume leadership roles.
Critical Thinking & Problem Solving - Students consider a variety of innovative approaches to address and understand complex questions that are authentic and important to their communities.
Content Expertise - Students develop key competencies, skills, and dispositions with ample opportunities to apply knowledge and engage in work that matters to them.
Products
Teams will create a design sketch and safety plan for a web shooter with a magnetic trigger, an insulated fluid chamber, and a soft projectile aimed only at a designated target. They will produce test records comparing how fluid thickness, stretch, drying time, and thermal protection affect launch range, accuracy, and consistency, including evidence of magnetic forces and action-reaction forces during launch and impact. Each class will end with a 3-2-1 reflection naming three things learned, two problems solved, and one remaining question about the web shooter fluid. The final product will be a safe, reliable prototype and brief presentation demonstrating repeated launches that land accurately at a target distance.
Launch
Introduce the online claim that two store-bought ingredients can create “web fluid,” noting that only the video’s title and description are available, then ask: “How can we design a safe, reliable web shooter fluid that launches consistently and lands where we aim?” Teams rotate through brief stations using teacher-approved, nontoxic materials to compare thickness, stretch, drying time, launch range, and accuracy with a low-force tabletop launcher aimed away from people. Additional stations use colliding carts, magnets, and insulated versus uninsulated containers to explore action-reaction forces, noncontact fields, and thermal energy transfer. Teams assign roles, record evidence, and sketch an initial design for a final prototype that launches consistently and lands accurately at a target distance. End with a 3-2-1 reflection naming three things learned, two problems solved, and one remaining question about the web shooter fluid.
Exhibition
Host a Web Shooter Design Expo where teams present their safe prototypes and answer, “How can we design a safe, reliable web shooter fluid that launches consistently and lands where we aim?” Teams demonstrate three launches toward a target distance and share data showing how thickness, stretch, and drying time affected range, accuracy, and consistency. Each display should explain how Newton’s Third Law, noncontact fields, and thermal energy transfer informed the design, alongside key iterations shaped by peer and teacher feedback. Visitors provide feedback, and students conclude with a 3-2-1 reflection naming three things learned, two problems solved, and one remaining question about the web shooter fluid.