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Practice Test 4 - 1st Grade Science

19 questions. Answer them in any order, then submit to see your score and every explanation.

  1. Read about Amir. He tapped a drum three times; each time he saw the top shake fast and heard boom. When he held it still, no sound. What did Amir's observations show?
  2. Read about Emma: she is upstairs; Mom is downstairs. What message does Mom need to send?
  3. Read Chen's test: prism made rainbow stripes on paper; no prism made white spot. What evidence shows the prism changed the light?
  4. Chen's mobile kept breaking because thread snapped. He used fishing line like strong spider silk. He tested it; the mobile stayed up without breaking. How does the design solve the problem?
  5. Read about Emma. She hit a triangle and it shook and rang. When she grabbed it, the shaking stopped and the ringing stopped. What explains why the triangle made sound?
  6. Carlos measured daylight: February 10 hours, May 14 hours, December 9 hours. Using the evidence, which is true about time of year and daylight?
  7. In the library, Sofia and Chen carry books back to the shelf. They notice some kids drop books when holding more than two. They ask, "How many books can you carry?" Most say "two" before books slip. They watch for five minutes and see 6 books fall. Sofia says, "We need fewer drops." Chen defines it: "The problem is that kids cannot carry many books at once without dropping them." They think a new carrying tool could help. Which statement best defines the problem?​
  8. A rabbit needs to stay safe. How do long ears help?
  9. In class, Emma's markers keep rolling off her desk. She sketches a long rectangle holder with three round holes on top and a flat bottom. She labels the holes "marker spots" and draws markers standing in them. The holder looks wide with straight sides. How will the round holes help?
  10. Read about Emma. She hit a triangle with a stick. The triangle shook and rang. The ringing lasted a long time. When she grabbed the triangle, it stopped shaking and the ringing stopped too. What explains why the triangle made ringing?
  11. Every night Amir sees many stars. Every daytime he sees none. Which shows this pattern?
  12. Maya notices it is still light at 8:00 pm in summer. In winter, it is dark at 5:00 pm. What do her observations show?
  13. Read the plan. What will Maya see and hear? QUESTION: Do vibrating things make sound? MATERIALS: tuning fork, hand STEPS: 1) Tap the tuning fork gently on a table. 2) Hold it near your ear. 3) Look at the ends and listen. OBSERVE: Are the ends moving? Do you hear sound? RESULT: The ends wiggle fast and the fork hums.
  14. Read about Carlos. He pushed a ruler on the desk edge and let go. The ruler moved up and down very fast and made a buzzing sound. He tried three times. Every time the ruler vibrated, he heard buzzing. What evidence did Carlos find?
  15. Read about Emma. Loud music played, and water rippled. What made ripples?
  16. Look at Sofia's flag tests. What did Sofia learn from testing? Test 1: 20 feet sunny—SUCCESS. Test 2: 50 feet sunny—SUCCESS. Test 3: 20 feet rainy—PARTIALLY WORKED. Test 4: night—FAILED.
  17. Look at Sofia's flag tests: Plan—see signals from different places. Test 1: 20 feet sunny—SUCCESS. Test 2: 50 feet sunny—SUCCESS. Test 3: 20 feet cloudy—PARTIALLY WORKED. Test 4: night—FAILED. When did the device work best?
  18. At the science center, Chen and Sofia had a problem: books fell when carried. They made two tray designs. Design A was a flat board with no edges. Design B was a board with raised edges. When they tested the designs, they did the same test: they put 3 books on each tray and walked 10 steps. They collected data by counting how many books fell. Results: A had 2 books fall, B had 0 books fall. They used tally marks to record. Why did they test both designs the same way?
  19. Chen looks up each night and sees many stars. Each day, he sees none. What pattern do you see?

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