Practice Test 5 - 3rd Grade Science
20 questions. Answer them in any order, then submit to see your score and every explanation.
- A toy car rolls 30 cm, 60 cm, 90 cm, then 120 cm with stronger pushes. What pattern do you observe?
- In the classroom, Ms. Lee must hang 20 artworks on a metal board with magnets. What criteria should the magnetic solution meet?
- In a hot, dry desert with little water, which organism survives well and why?
- A magnet attracted a paperclip through paper (strong), through a thin book (medium), through a thick book (weak), but through a metal sheet it did not work (none). Use the observations to explain why the strength changes.
- Read about the classroom library display. You can use only cardboard boxes, construction paper, tape, and scissors. It must be ready in under 15 minutes and cost $0, with no extra supplies allowed. Which statement lists the constraints on materials, time, or cost?
- Coastal Town built a 14-foot seawall to reduce hurricane storm surge flooding. In 2008 (before the wall), a storm surge flooded 200 buildings and 12 people died. In 2017 (after the wall), a 13-foot surge happened; behind the wall, 15 buildings flooded and 0 people died, but north of the wall (no wall) 85 buildings flooded and 3 people died. Using the data provided, which claim is best supported about the seawall?
- Based on the evidence, is drip irrigation effective at reducing drought crop losses?
- Read about the paper airplane challenge in the gym. A successful plane must fly at least 15 feet, land gently, and be made in under 5 minutes. According to the passage, when is it successful?
- Sofia saw a forest with deer, birds, and squirrels. After many trees were cut for houses and roads, how did this change affect the organisms living there?
- Read about the test: Yuki uses a solar oven to melt a marshmallow. What might go wrong?
- Which argument correctly uses the lion evidence: alone eats every 4 days and loses 20% weight; pride eats every 2 days and stays healthy?
- A wetland had frogs, ducks, fish, and cattails. After farmers drained the water, what happened to the plants and animals?
- Three-toed dinosaur footprints are in rock in a grassland. What does this fossil show?
- Two plants from the same parent were grown for 3 weeks. One sat in a sunny window and grew tall and green with many leaves; one stayed in a dark closet and grew short and pale with few leaves. Why did the closet plant look different?
- To understand typical summer weather in Texas, what data should be collected each day?
- Look at the different ideas. Cafeteria tables get messy with crumbs and spills. Solution 1: give each table a small broom and dustpan. Solution 2: put large trays at each table for plates. Solution 3: use washable placemats. Which two solutions would both work to help keep tables clean?
- Read about the test students are planning. Jamal will wrap cups of ice to see which material keeps ice frozen longest. To make this a fair test, what should students keep the same?
- Maya tested 3 plant containers for growing beans. Criteria: costs $2 or less, plants grow 7+ inches, and water drains well. Look at the results and compare. Which container best meets the criteria?
- A bar magnet's north end picked up paperclips, but the middle picked up ; why stronger at the end?
- In the cafeteria, workers use magnets to separate steel cans from aluminum cans. What must the solution be able to do?