Practice Test 3 - 5th Grade Science
19 questions. Answer them in any order, then submit to see your score and every explanation.
- Three white powders were observed: A fine, B coarse crystals, C fine and slightly shiny. Which physical properties were observed?
- Two bean plants grew for 4 weeks: one in soil, one in water with dissolved minerals (no soil). Both grew almost the same size. What does this evidence show about the source of plant matter?
- Maya graphs oceans 97%, ice 2%, groundwater 0.6%, lakes 0.01%; which chart fits?
- Sofia had 60 g ice in a sealed bag; after melting it was 60 g. Why?
- When you drop a rubber ball from your hand, it moves down and hits the ground. What causes the ball to fall toward the ground?
- Chen notices his tomato plant grows after watering; leaves also take in CO2—how does matter enter the plant?
- The model shows plants store energy by moving sugar to which plant parts?
- In a sealed bottle, Jamal mixed 10 g baking soda + 50 g vinegar; after fizzing it was 60 g. Why?
- Maya found Liquid Z was 15°C; which tool measured that temperature?
- A wolf runs to hunt deer; trace the wolf's energy back to its original source.
- A tomato plant makes new leaves using water from roots and carbon dioxide from air; which materials matter most?
- Marcus mixed 30 g salt and 30 g sand; the mixture weighed 60 g—why?
- How do plants store the energy they capture from sunlight during photosynthesis?
- Amir blows air into a balloon; it expands and feels firm. What can you conclude about particles from this observation?
- Carlos makes a bar graph for oceans 97%, ice 2%, groundwater 0.6%; what scale is best?
- In hydroponics, plants grow with no soil; based on this, what materials must plants still get?
- Based on the examples, a student says: "If you can't see one of the substances anymore, a new substance must have formed." Example 1: Salt + water. The salt seemed to disappear, and the water tasted salty. Example 2: Baking soda + vinegar. It fizzed and made bubbles. Is the student correct? Why or why not?
- Look at the data: Orion seen in January nights, not July, and repeats yearly; what causes it?
- Evidence: Sun brightest; Proxima Centauri 25 trillion mi barely visible; Betelgeuse luminous but 430 trillion mi dim. Which evidence best supports the argument that the sun appears brighter because it is closer?