Based on the image, I can see a worksheet titled "What is a mixture?" with a diagram showing three beakers labeled A, B, and C. Below the diagram are questions that need to be answered.
Let me analyze each beaker:
- Beaker A contains H2O (water) with what appears to be a solid substance at the bottom.
- Beaker B contains "Table salt" with what appears to be a solid substance at the bottom.
- Beaker C contains "Sand" with what appears to be a solid substance at the bottom.
The questions below ask about these beakers:
1. A compound is shown in Part ___ of the diagram.
2. Mixtures of the substances shown in Part A of the diagram are ___ mixtures.
3. Mixtures of the substances shown in Part B are ___ mixtures.
4. Mixtures of the substances shown in Part C are ___ mixtures.
5. The difference between the mixtures shown in Parts B and C is that the particles in the mixture shown in Part B are ___ while the particles in the mixture shown in Part C are ___.
To answer these questions, I need to understand the concepts of compounds and mixtures:
1. A compound is a substance formed when two or more different elements are chemically bonded together. In this case, H2O (water) is a compound, so the answer to question 1 would be "A".
2. For the mixtures:
- Part A: Water (H2O) with a solid substance. This could be a heterogeneous mixture if the solid doesn't dissolve, or a homogeneous mixture if it does.
- Part B: Table salt (NaCl) which dissolves in water to form a homogeneous mixture (solution).
- Part C: Sand which doesn't dissolve in water, forming a heterogeneous mixture.
3. The difference between Parts B and C is that table salt dissolves in water (forming a solution where particles are uniformly distributed), while sand doesn't dissolve in water (remaining as separate particles).
Therefore, the answers would be:
1. A
2. Homogeneous (if the solid dissolves) or Heterogeneous (if it doesn't)
3. Homogeneous
4. Heterogeneous
5. Dissolved (or uniformly distributed) vs. Not dissolved (or separate/visible)
Since the diagram shows solids at the bottom of all three beakers, it suggests that none of the substances have fully dissolved, which would make them all heterogeneous mixtures. However, table salt typically dissolves completely in water, so there might be an inconsistency in the diagram.
The most accurate answers based on scientific principles would be:
1. A (H2O is a compound)
2. Heterogeneous (assuming the solid doesn't dissolve)
3. Homogeneous (table salt dissolves in water to form a solution)
4. Heterogeneous (sand doesn't dissolve in water)
5. Dissolved (in Part B) vs. Not dissolved (in Part C)
Parent Tip: Review the logic above to help your child master the concept of mixtures and solutions worksheet 5th grade.
