Comparing milk and curd in Changes around us – Class 6 Science Experiment

Chapter Name: Changes around us

Activity Name: Comparing milk and curd in Changes around us

Activity Description:

In this experiment, we will compare the color, taste, state, and measurements of milk and curd. We will observe the differences between the two dairy products.

Required Items:

  1. Bowl
  2. Milk
  3. Curd
  4. Tea spoons
  5. Measuring instrument (e.g., measuring cup or graduated cylinder)
  6. Weighing scale

Step by Step Procedure:

  1. Take a bowl and pour some milk into it.
  2. Take another bowl and put some curd into it.
  3. Carefully compare the color of the milk and curd. Observe any differences in color.
  4. Take a teaspoon and taste the milk. Note down your observations regarding the taste.
  5. Take a separate teaspoon and taste the curd. Compare the taste of curd with that of milk. Note down your observations.
  6. Touch the milk with your finger and observe its state (liquid).
  7. Touch the curd with your finger and observe its state (semi-solid).
  8. Measure the level of milk in the bowl using a measuring instrument and note down the measurement.
  9. Weigh the bowl containing milk on a weighing scale and record the weight.
  10. Measure the level of curd in the bowl using a measuring instrument and note down the measurement.
  11. Weigh the bowl containing curd on a weighing scale and record the weight.

Experiment Observations:

  1. The color of milk and curd may differ slightly.
  2. Milk has a somewhat sweet taste, while curd can be slightly or highly sour.
  3. Milk is in a liquid state, whereas curd is in a semi-solid state.
  4. The level of milk and curd in their respective bowls can be measured.
  5. The weight of the milk and curd in their respective bowls can be measured.

Precautions:

  • Make sure to use clean utensils and spoons to avoid contamination.
  • Wash your hands before and after conducting the experiment.
  • Handle the milk and curd carefully to prevent spills.

Lesson Learnt from Experiment:

  1. Milk and curd have different colors, tastes, and states.
  2. Milk is a liquid, while curd is a semi-solid.
  3. Curd is formed by the fermentation of milk, which gives it its sour taste and semi-solid state.
  4. Measuring the level and weight of substances helps in comparing and quantifying differences.
  5. Observation and comparison are essential scientific skills to understand changes in substances.

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