Practice Test 6 - 2nd Grade Science
20 questions. Answer them in any order, then submit to see your score and every explanation.
- Look at the tower, bridge, and house made with the SAME 6 blocks. How is this possible?
- Amir created a model: pipe-cleaner burrs stick to felt, then fall off. What shows?
- Look at the objects. The rock and pinecone are alike because both are ____.
- Sofia used sources: eruption in days; soil forms over many years. Which is true?
- Students tested wood, rock, metal, and plastic to find the best floor. Purpose: not scratch easily. Procedure: They scratched with a fingernail. Results: Wood—scratched; Rock—not scratched; Metal—not scratched; Plastic—scratched. The test shows that wood ____.
- Yuki sketched a file holder. How does the slanted shape help?
- Sofia watched a butterfly on flowers. How does the butterfly help the plant?
- Read Yuki's experiment. She froze water into ice cubes. She also saw rain and a puddle outside. Which is an example of water as a liquid?
- Chen tested two boot-drying designs after recess. Design A was a boot tray with raised edges. Design B was a tray with holes over a pan. He put wet boots in each for 30 minutes. Look at the test results data. Data: - Water: A collected water in tray; B drained water into pan. - Emptying: A needs emptying; B is easier to empty. - Parts: A is one piece; B needs two pieces. What is a weakness of Design B based on the test results?
- Marcus must store classroom supplies neatly for parent night. Tests: A open shelf 5s, looks messy; B cabinet 15s, always neat, protects. Which design works better, and why?
- Emma made a clay island model: tall mountain, tan beach, blue ocean, small lake. What land and water features does the model show?
- Amir will water Plant A with 2 tablespoons daily and Plant B with none. What should he observe?
- Look at the objects: red crayon, red apple, blue cup, blue ball, red block, blue marker. Which two belong in the blue group?
- Carlos built a model to stop pencils rolling off a slanted desk. He cut a cardboard tube in half, glued a flat bottom, and tested with three pencils. Which shape in Carlos's model is most important for solving the problem?
- Look at these classroom supplies: a yellow pencil (wood, hard, smooth), a pink eraser (rubber, soft, bumpy), white paper (soft, bendable), and a red crayon (wax, hard, smooth). Which describes the texture of the eraser?
- Amir tested two designs to carry 5 library books. Design A was a bag with two handles. Design B was a box with one side handle. He carried each across the same room. Look at the test results data. Data: - Weight feel: A felt even; B felt heavy on one side. - Books: A books shifted; B books stayed stable. - Problem: B was harder to carry. Which design would work best if you want books to stay stable?
- Chen created a model. What does the model show about seed dispersal?
- Look at the objects: paperclip, coin, plastic toy, wooden block, metal spoon, plastic cup. Which property can sort them into groups?
- Look at the objects: paper, rubber band, fabric, wooden stick, plastic ruler, metal spoon. Which objects are bendable?
- Based on the book, video, and photos, what did Chen learn about Earth event speed?