Page 27 - Demo

Your Safer Source for Science
GREEN CHEMISTRY & ALTERNATIVE ENERGY, cont’d.
Cooking with Solar Energy—
Build a Water Wheel—
Flinn STEM Design ChallengeTM
Flinn STEM Design ChallengeTM
Learn how solar ovens work and cook some yummy snacks with energy from the sun— no electricity or flames needed! In the first part of this activity, students make a basic box-type solar oven and then investigate how high the internal temperature reaches in a given amount of time. Once the data are collected and analyzed, students then apply their knowledge of science concepts, such as heat transfer, reflection, absorption and the greenhouse effect, to design and implement improvements for a more effi- cientoven.
AP8048 | $53.75
Students have fun while building water wheels and determining how much power the wheel can generate! In the first part of this activity, students build an eight-bucket water wheel, choosing from the materials provided. Each group then tests its wheel, collecting data and making observations
as the wheel turns and lifts a load. Next, students brainstorm and decide how to make improvements to their design. Variables, such as the size, shape and number of buck- ets, are considered.
AP8050 | $53.75
Flinn STEM Design
Flinn STEM Design ChallengeTM
Generating Electricity with Wind—
Flinn STEM Design ChallengeTM
Students build their very own model cars that run on energy from the sun! These solar vehicles use mini solar panels to convert the Sun’s energy to electricity. In the first part of this activity, students learn how a solar car works and build a model prototype. Next, they investigate different variables to deter- mine their effect on the car’s performance. Based on the data collected and their obser- vations, students create an optimal design solution for a faster moving car. This activity increases the level of student enthusiasm and ownership of the results as they apply their knowledge and reasoning skills while activelyengagingintheengineeringdesign process! Complete for eight student groups.
AP8049 | $154.45
Flinn STEM Design ChallengeTM
In this lab, students explore ethanol production through the fermentation of carbohydrates by yeast cells. The lab begins with an introductory activity in which students conduct a controlled experiment to investi- gate the amount of carbon dioxide produced through the fermentation reaction of yeast with two different types of carbohydrates. Students observe the amount of carbon dioxide produced and determine the most productive carbohydrate food source. Then students are then challenged to design and implement a method to collect and quantify the amount of carbon dioxide produced. AP8052 | $47.45
In this activity, students investigate how the blade design of a wind turbine affects the amount of power it generates. In the first part of this activity, students learn how to build a rotor and blade assembly from the materials provided. Each group’s prototype is tested by attaching it to a DC motor (acting in reverse as a generator) connected to a multimeter.
A fan provides the wind. The highest read- ing of volts and amps are recorded, and the maximum power output is calculated. After making observations and analyzing data from the preliminary tests, students brainstorm and decidehowtomakeadjustmentstoenhance their design.
AP8051 | $50.40
ChallengeTM Lab Manual
Integrate STEM into your existing curriculum with this exclusive Flinn lab manual! The 22 activities incorporate inquiry and design so students can connect science and engineer- ing practices to conceptual knowledge and reasoning skills across science disciplines. Increase student engagement and owner- ship of the results! Each procedure includes detailed background, teaching tips, safetyanddisposalconsiderations,NGSS alignment and reproducible student pages. AP8333 | $125.00
Solar-Powered Cars—
Biofuels—
GREEN CHEMISTRY & ALTERNATIVE ENERGY I FLINN SCIENTIFIC 25