Washington Comprehensive Assessment of Science (WCAS) Grade 8 case studies
Washington Comprehensive Assessment of Science (WCAS) Grade 8 · Put your knowledge to work in context.
The Washington Comprehensive Assessment of Science (WCAS) is a Washington state science assessment administered through the Office of Superintendent of Public Instruction (OSPI). In OSPI's site navigation, the WCAS appears as one of the state testing programs listed alongside WaKIDS, Smarter Balanced, and the WA-AIM, and it is grouped under the Science subject-area resources. This page is an independent study resource for students, families, and educators preparing for the WCAS; it is not affiliated with, endorsed by, or operated by OSPI or any school district. Because the official WCAS page could not be retrieved when this profile was compiled, verified details such as the number of items, test length in minutes, passing score, fees, retake rules, score validity period, and the percentage weighting of each science domain are not stated here and are marked for review. The Washington Comprehensive Assessment of Science (WCAS) Grade 8 case studies are 5 cases and about 2,090 words.
1The Overloaded Extension Cord
A student sets up a display for the school science fair. She plugs a power strip into a single wall outlet and then connects four devices to the strip: a 60-watt lamp, a 40-watt fan, a 250-watt mini projector, and a 500-watt kettle.
498 words, about 2 min2Two Carts on a Track
Students roll two carts toward each other on a low-friction track. Cart A has a mass of 2.0 kg and moves right at 3.0 m/s.
398 words, about 2 min3The Wilting Greenhouse Tomatoes
A class grows tomato plants in a greenhouse. Group 1 waters plants daily with 200 mL of tap water and keeps the greenhouse at 30°C with high humidity.
424 words, about 2 min4Deer and Wolves on the Ridge
A wildlife class studies a ridge where deer browse young trees. Wolves are the main predator of deer.
358 words, about 2 min5The Disappearing Beach
A coastal town notices its beach has narrowed over 20 years. Residents blame a new upstream dam built 20 years ago.
412 words, about 2 min