Raman's Rays: Where Light, Crystals, and Vegetables Shine Bright!
Fun and Knowledge
1. What is C.V. Raman's full name?
Answer: Chandrasekhara
2. Which country did C.V. Raman win the Nobel Prize for?
Answer: India
3. Which field did C.V. Raman work in?
Answer: Physics
4. In which city did C.V. Raman conduct his experiments?
Answer: Kolkata
5. Which colour is most associated with the Raman Effect?
Answer: Blue
6. Which Nobel Prize did C.V. Raman win?
Answer: Physics
7. What does the word “Raman” refer to in the Raman Effect?
Answer: Light
8. What is the main aim of celebrating National Science Day?
Answer: Awareness
9. Which natural source of light is often used to demonstrate the Raman Effect?
Answer: Sunlight
10. What is the primary colour that light scatters into during the Raman Effect?
Answer: Red
11. Which Indian university did C.V. Raman work at?
Answer: Calcutta
12. Which gas is often used in experiments involving the Raman Effect?
Answer: Hydrogen
13. Which type of light does the Raman Effect deal with?
Answer: Scattered
TINA KHATRI
In honour of National Science Day on Feb 28, we’ve curated a set of exciting, hands-on activities that tie directly into the wonders of science! Each experiment is designed to not only engage you in fun but also deepen your understanding of key scientific principles.
Take, for instance, the crystal-growing experiment – as you create colourful edible crystals, you’ll see firsthand how molecules come together to form solid structures. This process mimics what happens in the natural world and shows how science is at work in everything around us. Similarly, the Raman Effect activity uses light scattering to explain how light interacts with molecules, just like the groundbreaking work of C.V. Raman, whose discovery earned him the Nobel Prize in Physics. By shining a laser through coloured liquids, you’ll observe how light changes direction, demonstrating the science of light scattering and helping you understand Raman’s key contribution to physics.
In honour of National Science Day on Feb 28, we’ve curated a set of exciting, hands-on activities that tie directly into the wonders of science! Each experiment is designed to not only engage you in fun but also deepen your understanding of key scientific principles.
Take, for instance, the crystal-growing experiment – as you create colourful edible crystals, you’ll see firsthand how molecules come together to form solid structures. This process mimics what happens in the natural world and shows how science is at work in everything around us. Similarly, the Raman Effect activity uses light scattering to explain how light interacts with molecules, just like the groundbreaking work of C.V. Raman, whose discovery earned him the Nobel Prize in Physics. By shining a laser through coloured liquids, you’ll observe how light changes direction, demonstrating the science of light scattering and helping you understand Raman’s key contribution to physics.
Colourful, edible CRYSTALS!
Ingredients:
2 cups water
4 cups sugar
Food colouring and flavouring (optional)
Tools Needed:
Microwave-safe glass or bowl
Spoon or stirrer
Measuring cups
Pencil or skewer
Popsicle stick or wooden sticks
Paper towel
Tall, narrow jar or glass (not plastic)
Oven mitts or hot pads
Instructions:
Make the Sugar Solution:
Combine 2 cups water and 4 cups sugar in a microwave-safe glass.
Microwave on high for 2 minutes, stir, then heat for another 2 minutes. Stir again until sugar dissolves completely.
Cool and Add Flavour:
Let the mixture cool for 15-20 minutes. Add food colouring and flavouring if desired.
Prepare the String or Stick:
Tie a string to a pencil or use a popsicle stick. Dip it into the sugar solution, then let it dry.
Grow the Crystals:
Pour the solution into a clean jar, place the string or stick in the jar, and rest the pencil on top.
Cover the jar with a paper towel and let it sit undisturbed for 1-2 weeks.
Ingredients:
2 cups water
4 cups sugar
Food colouring and flavouring (optional)
Tools Needed:
Microwave-safe glass or bowl
Spoon or stirrer
Measuring cups
Pencil or skewer
Popsicle stick or wooden sticks
Paper towel
Tall, narrow jar or glass (not plastic)
Oven mitts or hot pads
Instructions:
Make the Sugar Solution:
Combine 2 cups water and 4 cups sugar in a microwave-safe glass.
Microwave on high for 2 minutes, stir, then heat for another 2 minutes. Stir again until sugar dissolves completely.
Cool and Add Flavour:
Let the mixture cool for 15-20 minutes. Add food colouring and flavouring if desired.
Prepare the String or Stick:
Tie a string to a pencil or use a popsicle stick. Dip it into the sugar solution, then let it dry.
Grow the Crystals:
Pour the solution into a clean jar, place the string or stick in the jar, and rest the pencil on top.
Cover the jar with a paper towel and let it sit undisturbed for 1-2 weeks.
Raman’s Rainbow: scattering light
Materials Needed:
Laser pointer
Coloured liquids (e.g., blue water, orange juice)
Clear container (glass or plastic)
White paper
Instructions:
Set Up:
Fill a container with a coloured liquid (e.g., blue water or orange juice).
Place the container on a table.
Shine the Laser:
Shine the laser pointer through the liquid.
Hold white paper behind the container and observe the light.
Observe:
Watch how the light changes or spreads out after passing through the liquid.
Try Different Liquids:
Repeat with other coloured liquids and notice any changes in the light.
Explanation:
Light Scattering: When light passes through a liquid, it can scatter and change direction because of interactions with the liquid’s molecules.
Connection to the Raman Effect: The Raman Effect shows how light can change colour when it scatters. This experiment demonstrates the basic idea of light scattering with coloured liquids.
Vegetable Parmesan Bake
Ingredients:
1 cup zucchini, sliced
1 cup bell pepper, chopped
1 cup cherry tomatoes, halved
1/2 cup breadcrumbs
1/2 cup grated Parmesan cheese
1/2 cup shredded mozzarella cheese
1 tablespoon olive oil
Salt, pepper, basil, and oregano to taste
Instructions:
Preheat oven to 375°F (190°C).
Toss zucchini, bell pepper, and tomatoes with olive oil, salt, pepper, basil, and oregano.
Place veggies in a baking dish.
Mix breadcrumbs, Parmesan, and half the mozzarella, then top the veggies with this mixture.
Bake for 20-25 minutes until golden and bubbly.
Serve warm and enjoy!
Materials Needed:
Laser pointer
Coloured liquids (e.g., blue water, orange juice)
Clear container (glass or plastic)
White paper
Instructions:
Set Up:
Fill a container with a coloured liquid (e.g., blue water or orange juice).
Place the container on a table.
Shine the Laser:
Shine the laser pointer through the liquid.
Hold white paper behind the container and observe the light.
Observe:
Watch how the light changes or spreads out after passing through the liquid.
Try Different Liquids:
Repeat with other coloured liquids and notice any changes in the light.
Explanation:
Light Scattering: When light passes through a liquid, it can scatter and change direction because of interactions with the liquid’s molecules.
Connection to the Raman Effect: The Raman Effect shows how light can change colour when it scatters. This experiment demonstrates the basic idea of light scattering with coloured liquids.
Vegetable Parmesan Bake
Ingredients:
1 cup zucchini, sliced
1 cup bell pepper, chopped
1 cup cherry tomatoes, halved
1/2 cup breadcrumbs
1/2 cup grated Parmesan cheese
1/2 cup shredded mozzarella cheese
1 tablespoon olive oil
Salt, pepper, basil, and oregano to taste
Instructions:
Preheat oven to 375°F (190°C).
Toss zucchini, bell pepper, and tomatoes with olive oil, salt, pepper, basil, and oregano.
Place veggies in a baking dish.
Mix breadcrumbs, Parmesan, and half the mozzarella, then top the veggies with this mixture.
Bake for 20-25 minutes until golden and bubbly.
Serve warm and enjoy!
Fun and Knowledge
1. What is C.V. Raman's full name?
Answer: Chandrasekhara
2. Which country did C.V. Raman win the Nobel Prize for?
Answer: India
3. Which field did C.V. Raman work in?
Answer: Physics
4. In which city did C.V. Raman conduct his experiments?
Answer: Kolkata
5. Which colour is most associated with the Raman Effect?
Answer: Blue
6. Which Nobel Prize did C.V. Raman win?
Answer: Physics
7. What does the word “Raman” refer to in the Raman Effect?
Answer: Light
8. What is the main aim of celebrating National Science Day?
Answer: Awareness
9. Which natural source of light is often used to demonstrate the Raman Effect?
Answer: Sunlight
10. What is the primary colour that light scatters into during the Raman Effect?
Answer: Red
11. Which Indian university did C.V. Raman work at?
Answer: Calcutta
12. Which gas is often used in experiments involving the Raman Effect?
Answer: Hydrogen
13. Which type of light does the Raman Effect deal with?
Answer: Scattered