Practice Test 12 - 2nd Grade Science
19 questions. Answer them in any order, then submit to see your score and every explanation.
- Look at cookie dough before and after heating. What changed?
- Jamal used sources; what evidence shows soil forms very slowly?
- Look at the items. Which objects can be grouped as rough?
- Ten SAME LEGO pieces made a car and a robot. What stayed the same?
- Carlos needs recycling paper to stay dry from spills. Data: Box(A) holds 100, gets wet; Bin(B) holds 40, lid stays dry. Which should he choose, and why?
- Original: a LEGO car using 1 base, 4 wheels, and 3 blocks. New: same pieces make an airplane. Which is true?
- Students tested paper, fabric, plastic, and foil to find the best raincoat. Purpose: keep water out. Procedure: They put 5 drops of water on each material and watched. Results: Paper—water soaked in; Fabric—water soaked in; Plastic—water stayed on top; Foil—water stayed on top. Which material worked best for a raincoat?
- Look at the items. The spoon and marble are alike because both are ____.
- Read the assignment. How should Chen show a river on his field trip diorama?
- Read about Carlos. Solid ice: snow and ice on a pond. Liquid water: a river and water in a cup. Which examples show water in solid form (ice)?
- Emma made a park map model. What does the blue circle represent?
- Emma sees beach erosion. Waves hit the shore and take sand. The beach looks smaller each summer. Solution A: a low wall of stacked rocks. Solution B: a ditch that guides rainwater away. Which solution would work best to stop wave erosion?
- Keisha plans: one plant in sun, one in closet. What must be the same?
- Emma created a model. What does it show about how seeds spread?
- Jamal tests two plants: one gets sunlight, one gets no sunlight. What is changed?
- Carlos will test sunlight for 10 days. What will he compare?
- Marcus drew a swing turn board. Why is the board flat in his sketch?
- Carlos is learning about a noisy classroom problem. He listened during quiet work and it was not loud. He listened during group work and it was very loud. He counted 6 groups talking. What information did Carlos learn from the observations?
- Chen gathered sources: news said a tsunami reached shore in 20 minutes; book said earthquakes shake up to 2 minutes; eyewitness said a sinkhole opened in 10 seconds. According to the information, which statement is supported?