Mixtures, Conservation, and Investigation Design Worksheet
📝 Worksheet hard ⏱️ 22 minutes 10 problems
Mixtures, Conservation, and Investigation Design Worksheet
Grade 5 Science LearnCrux.com
Name:
Date:
Directions
- Fill in each blank carefully.
- Circle or mark the best answer for each multiple-choice question.
- Match each prompt to the best option before writing your answer.
- Use the larger space to show your thinking on word problems.
1. A combination of substances is a __.
2. Which question best fits an investigation about chemical change?
3. Match the evidence to the best interpretation: sugar dissolves but can still be recovered later
Match with:
Answer:
4. In a closed system, the total amount of matter stays the __.
5. Why should students compare more than one observation before deciding a new substance formed?
6. Which observation most strongly suggests a chemical change?
7. Match the scientific move to its purpose: measure before and after mixing
Match with:
Answer:
8. Matter does not vanish when it dissolves; it becomes harder to __.
9. Which statement is most accurate?
10. Why is fair testing important when students investigate mixtures?
📋 Teacher Answer Key
1. mixture
2. Did mixing these two substances create a new substance?
3. matter is still present
4. same
5. Using several observations makes the conclusion more reliable than guessing from one dramatic clue alone.
6. a gas forms and a new solid appears
7. check conservation of matter
8. see
9. A big visible change does not automatically prove a new substance formed.
10. Fair testing helps them compare evidence carefully and make a stronger claim about whether a new substance formed.