Practice Test 9 - 1st Grade Science
20 questions. Answer them in any order, then submit to see your score and every explanation.
- In the art room, Sofia and Marcus wash paint cups at the sink. They observe water splashes onto the floor. They count 5 splashes in one cleanup time. They see kids step in puddles and slip a little. Marcus says, "The cup tips when we pour." Sofia says, "We need to state the problem first." They define: "The problem is paint water spills when cups tip at the sink." A new tool could keep cups steady. What problem could be solved with a new or improved object?
- Emma and Amir review results: Design A reached 48 inches high with a 3-inch platform. Design B reached 51 inches high with a 6-inch platform. They say Design A may not be tall enough for some shelves. They use the numbers as evidence. Looking at the results, how do the designs compare based on the test results?
- In summer, Maya can play outside after dinner and it is still light. In winter, it is dark after dinner. What does this show?
- Look at Keisha's tomato chart. What does it show about variation?
- Read about bears: What do cubs learn from mother?
- Look at the design Chen made. He cut tissue paper, taped strings, and tied a toy under it. He copied a dandelion seed. How does Chen's design copy the dandelion seed?
- Maya looks outside at 6:30 pm. In Summer it is light, in Winter it is dark. Which season has more daylight?
- Maya wrote: June has about 15 daylight hours; December has about 9. What does the evidence show about time of year and daylight?
- Read about a kangaroo mother and joey. How do they work together to stay safe?
- In the cafeteria, many kids cannot open milk cartons. Milk spills and tables get sticky. Sofia asked, "Who has trouble opening the milk?" Jamal asked, "What part is hardest to open?" Chen asked, "What happens when it spills?" Asking questions helps them find out what people want to change. How do the questions help with the problem?
- Marcus watched the moon on three clear nights at bedtime. It was left, then middle, then right. Where will it likely appear next night?
- A cactus lives in a dry desert. How do spines help it?
- Emma compared clear plastic and red plastic with a flashlight. How did the clear plastic change what she could see beyond?
- Read Amir's plan: He holds materials in a light beam. What is Amir testing?
- Read about Emma. Clear plastic let bright white light through and she saw clearly. Red plastic made red light and she saw red. What did Emma learn about different materials?
- In the makerspace, Jamal and Sofia had a problem: books fell when carried. Design A was a flat board with no edges, and Design B had raised edges. To test both designs fairly, they put 3 books on each and walked 10 steps. They recorded the number of books that fell: A had 2 fall, B had 0 fall. Why did they test both designs the same way?
- Look at Carlos's chart. What did the puppies inherit?
- Read about Marcus. Closet was dark, so shoes were invisible. He shined a flashlight and saw them. How did the flashlight help Marcus?
- Carlos needs to grab far away. Elephants use trunks. Which animal part could help solve his problem?
- Look at these animals. How does this pattern help offspring survive? Animal | Parent behavior | Baby behavior Rabbit | Digs a burrow | Babies stay hidden Fish | Guards eggs | Baby fish hide in plants Bird | Attacks nest danger | Chicks crouch down