Practice Test 8 - 2nd Grade Science
19 questions. Answer them in any order, then submit to see your score and every explanation.
- Maya used sources: book says earthquakes shake 30 seconds–2 minutes; video shows landslide in 40 seconds; news reports flood rose in 6 hours. Based on the sources, which events happen quickly?
- Sofia read: a landslide can happen in minutes after rain. She saw photos: a glacier moved slowly over years. Which statement is supported by the sources?
- Maya tested two watering bottle designs to water plants evenly. Design A had 3 small holes in the cap. Design B had 1 large hole in the cap. She watered 3 plants with each. Look at the test results data. Data: - Speed: A took longer; B was faster. - Watering: A was gentle and even; B sometimes poured too much. - Observation: B made puddles on one plant. Based on the test results, which design worked better for even watering?
- Amir needs students to find counters quickly in math. Tests: A mixed bin cleanup 2 min, finding 45s; B tray cleanup 8 min, finding 5s. Which design should they choose, and why?
- Based on the book, video, and photos, which events are fast and slow?
- Sofia went to school early and looked around. She saw the playground, a flat grassy field, a small garden, and a ditch with water. Based on the description, what water feature is in the ditch?
- Look at what Jamal saw. How does the squirrel help the oak tree?
- Maya drew a field trip area: forest green, stream wavy blue, meadow yellow, rocky hill gray. What does the wavy blue line represent?
- Look at the objects: rubber ball, cotton ball, rock, metal key, sponge, wooden block. The rock and metal key are alike because they are both ____.
- Students tested paper, cardboard, plastic, and wood to find the strongest bridge. Purpose: find which material holds the most books. Procedure: They stacked books until each bent. Results: paper held 2 books, cardboard held 5 books, plastic held 7 books, wood held 9 books. Which material held the most books?
- Emma observed a forest in spring at 3:05 p.m., May 2, Oak Grove Woods. She looked at tree trunks and the ground, then recorded in a notebook. She saw moss on 3 trees, found 2 mushrooms by a stump, and watched 1 woodpecker pecking a pine. She also saw 5 ants moving in a line. What did Emma observe in the habitat?
- Maya observed a beach habitat at 8:30 a.m., June 9, Sandy Point Shore. She watched and listened, then recorded notes in a field journal. She saw 3 seagulls near the water, found 2 crabs under seaweed, and noticed seagrass on the sand. She also saw 5 sandpipers running by the waves. What did Maya observe in the habitat?
- Emma compared photos: dunes moved, and a gully grew; what caused this?
- Sofia created a model. What does it show about a bird helping berry plants?
- Look at these changes. Argue which can change back and which cannot. Use evidence from what happened.
- Based on Sofia's beach photos, what did waves do to the beach?
- Look at a glass marble and a rubber ball. Why do they belong together?
- Carlos's class has a problem: sand keeps blowing out of the sandbox and the sandbox is losing sand. Carlos wants to understand how big the problem is. What is a good question to ask?
- Read the assignment. Maya is making a playdough model of a vacation spot with an ocean, a beach, hills, and a valley. Which feature should Maya make biggest in her model?