Practice Test 2 - 2nd Grade Science
19 questions. Answer them in any order, then submit to see your score and every explanation.
- Maya is building a small bridge for toy cars. The bridge must be strong. Look at the test results (books held before breaking): paper 3, cardboard 5, plastic 8, wood 12. Which material should we use? Explain using the test results.
- Look at a wooden stick and a plastic ruler. What is the same?
- Amir drew a boot tray sketch. How do raised edges help solve drips?
- Marcus made ice cubes in a freezer. Later, the ice melted into water in a bowl. Which is an example of water as a liquid?
- Yuki uses two same plants. Which plan is NOT a fair test?
- Look at Maya's week: ocean water was liquid, snow was solid ice. What did she learn?
- Test results: A checklist is free but slow to find names; B chart costs $12 but fast to see. Sofia must find who has a book in 3 seconds. Which design works better, and why?
- Look at Sofia's notes: ocean water is liquid, river water is liquid, pond ice is solid, and snow is solid. What did Sofia learn about water?
- Students tested paper, cardboard, wood, and plastic to find the strongest bridge. Purpose: hold books. Procedure: They put books on each material until it bent. Results: Paper held 2 books; Cardboard held 6 books; Wood held 10 books; Plastic held 7 books. Which material held the most books?
- Emma's lunch ice pack melts by lunchtime, and her food gets warm. Emma wants to understand the problem. What should Emma ask to learn when it happens?
- These use the SAME 6 blocks: tower, bridge, and house. How is this possible?
- Maya says all melting can change back. Jamal says not all can. Use evidence to argue who is right.
- Maya drew a cart for a heavy garden hose. How do wheels help solve the problem?
- Sofia created a model. What process does her model demonstrate?
- Original: a tall tower of 6 blocks. New: same 6 blocks make a bridge. Were any new pieces added?
- Maya wrote an observation log. Solid (ice): frost, snow, ice cubes. Liquid (water): rain, sink water, puddles. Which examples show water in liquid form?
- Chen watched a video called "Landslide in Action," 1 minute long. He read a book saying landslides can slide in seconds. An eyewitness said, "In 20 seconds, rocks covered the road." Based on the sources, which statement is supported?
- Chen's school garden plants are dry on Mondays because no one waters them on weekends. Chen asks questions to understand the situation. Which question would help the class learn who is affected?
- Jamal drew a tray for lunch. How do raised edges help solve it?