Day 2 – Introduction to chemical compounds and photosynthesis

Day 2 – Introduction to chemical compounds and photosynthesis

Created by: Michele Madison


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About this Day

In your science journal, starting at the back page and working backwards, record your vocabulary terms to create a glossary. Lets start with these terms!

  • Agriculture: the science, art, or practice of cultivating the soil, producing crops, and raising livestock and in varying degrees the preparation and marketing of the resulting products.
  • Carbon dioxide: a compound with 2 carbon molecules and 1 oxygen molecule.
  • Chemical change: reactions in which molecular change takes place.
  • Physical change: changes in shape, size or state of matter that do not change molecular structure.
  • Ramen: a Japanese noodle soup that usually contains noodles and some combination of vegetables and proteins cooked in broth.

Have you ever had a bowel of ramen? Not the noodles that come in the plastic package but the Japanese soup bowl of noodles with broth, vegetables and other things.

This week, you are going to plant two crops that you could use in your own dish of ramen: bok choi and onions.

When you combine different ingredients into one dish, like you do for ramen or when you make a salad, you are causing a physical change to the ingredients. You cut vegetables smaller or remove the peel.

These changes effect the vegetable but they do not change its molecular structure.


Have you ever created a volcano in your kitchen with baking soda and vinegar?

If not, check out this video of one.


You could recreate this experiment in your own kitchen.

Do you know why it works? The chemicals in the baking soda and vinegar combine in a chemical reaction to create new chemicals, including a byproduct of carbon dioxide gas.


Do you recall talking about carbon dioxide before? Plants use carbon dioxide as part of the photosynthesis process to make sugar.

But what is carbon dioxide? Learn more about it here.


Thinking about real life examples of physical and chemical changes can make them easier for you to understand. As you grow the plants for your own ramen dish, consider what physical and chemical changes may be happening in your plants to help them grow!

In the next lesson, we are going to look closer at the role carbon and carbon dioxide will play in growing your ramen and begin your Ramen Grow Bag.