Practice Test 1 - 3rd Grade Science
20 questions. Answer them in any order, then submit to see your score and every explanation.
- Students want to hang schedules inside a metal locker using magnets. Which criterion helps decide if solution works?
- Emma's class observed a desert habitat: 110°F most days, very dry air, and only one rainstorm each month. In 4 weeks, cactus plants grew more flowers and new baby cacti appeared. Camels stayed healthy and were seen walking for days without drinking. A rainforest frog was not found after 2 weeks. According to the observations, what explains why some organisms survive well and others cannot?
- Look at the birds. Which statement best explains the shared beak shape? Parent bird: yellow feathers, short beak, small Baby bird: yellow feathers, short beak, small
- Read about the classroom library display. You must display this week's featured books before school starts. You can use only cardboard boxes, construction paper, tape, and scissors, and it must cost $0. The display must be set up in under 15 minutes. What are the constraints for this design?
- A pet store has 30 goldfish; fin lengths range from short to long. Which trait has different versions in the group?
- Read about the test students are planning. Emma tests 3 paper airplane designs and measures distance to the nose. Why is it important to throw from the same 6-foot height each time?
- Using data from Sources 1, 2, and 3, describe the Arctic climate. Source 1 (temperature logs): Winter -40 to -20°F for months; summer 32-45°F briefly. Source 2 (snowfall): Only 6-10 inches per year, all snow. Source 3 (journals): 24-hour darkness in winter and 24-hour daylight in summer; ice and permafrost.
- Based on the March–May table for Ohio, what is typical spring weather for temperature?
- Lost and found needs to be quick, help students find items, and not take too much space. Plan A: 4 labeled bins, 5 minutes to sort, easy to find items. Plan B: 1 big box, 1 minute to sort, hard to find items. Plan C: 50 hooks and a log book, 10 minutes per item, very organized. Which option is the best choice for this situation?
- Read about the test students are planning. Emma made 3 paper airplane designs and wants to see which flies farthest in the gym. Each plane will be thrown from 6 feet, with the same force, and measured to the nose. Which plan is a fair test?
- A ball rolls off ramps: 20 cm high rolls 80 cm, 40 cm rolls 160 cm, 60 cm rolls 240 cm. If the pattern continues, how far from 80 cm?
- Scientists found three-toed dinosaur footprints with claw marks; what do these fossils reveal?
- What evidence best supports the claim that zebra herds help zebras survive lion attacks?
- Maple leaves from the same species had 3–7 points on the edge. What does the data show about variation in maple leaves?
- Sofia tested 3 containers for growing beans. Criteria: costs $2 or less, plants grow 7+ inches, and water drains well. Clay pot: $4, 8 inches, drains well. Plastic cup: $0, 6 inches, water pools. Milk carton: $0, 9 inches, drains well. Which container best meets the criteria?
- To track weather patterns for spring in Ohio, students should record what each day?
- A pond had native fish and native water plants. After someone released non-native fish, how did the invasive fish affect organisms there?
- A balloon rubbed 10 times picked up 7 paper pieces, but rubbed 5 times picked up 3. When rubbing decreases, what happens to static attraction?
- Jamal's town has tornado warnings that may only last a few minutes. The safe room helps reduce what tornado danger most?
- Jamal kept a pet guinea pig and wrote notes for 8 weeks. Weeks 1–3: balanced pellets + fresh veggies, fur looked shiny and smooth. Weeks 4–6: mostly crackers, fur looked dull and rough. Weeks 7–8: balanced food again, fur looked shiny again. Which conclusion is supported by the observations?