science station vocabulary and introduction to molecular biology unit
TRANSCRIPT
Molecular Biology
Welcome! Today we will begin
discussing our very last unit:
Molecular Biology. Let’s learn some
new vocabulary and what will be
discussed in this unit!
Molecular Biology
This unit is all about how we can get healthy and maintain that health. Humans aren’t the only organisms that need to stay healthy! All animals need to be healthy in order to grow and be strong. Throughout this lesson we will learn how to do that. Let’s get started with some vocabulary words.
Vocabulary
Nutrient-A nutrient
substance or ingredient. A tiny building block for
the body that helps to keep you
healthy.
Vocabulary
Food Chain –
A system that typically begins with plants and
demonstrates who eats who in the
cycle of life.
Plant’s Food
We will discuss the food chain throughout this lesson. Let’s break the food chain down, by talking about each step of the chain, beginning with plants. All food chains usually begin with green plants, like grass or tree leaves. The animals that only eat plants are called herbivores.
Food Chain
So far, we have only two parts of the food chain,
plants and herbivores. This is
what the food chain looks like so
far!
Food ChainNext, we learn
about carnivores. Carnivores are animals that eat other animals for food; like the lion
that ate the giraffe. Now our food chain has gotten bigger!
Food Chain
Eventually the animals at the top of the food chain, that eat other animals, die as well. When they die, their bodies decompose on the ground. This bacteria and fungi becomes nutrients for plants to make food! So you can see how the food chain is a cycle!
Food Chains
Food chains can be very simple or they can be very complex!! Either way, food chains are very
important.
Food Chains
Food chains are important because all organisms need food. Do you know why organisms need food? Organisms must have food to have energy. And all organisms must have energy to have movement, reproduce, and repair their bodies!
Food Chains
What do you think would happen to a person that doesn’t get enough food and nutrients?
Yes! They could get sick!
Food Chains
Since being sick isn’t any fun, so the food chain is very important for us to understand. When you understand your food chain, you will understand what it takes for you to stay healthy and strong.
Human Food Chain
Some animals, including humans have food chains
that look very different. Let’s look
at a few different food chains for
humans.
Human Food Chain
Some people eat foods that
other people do not eat, like
meat. A person who does eat meat might have a food
chain that looks like this:
Human Food Chain
In this food chain, plants were eaten by animals and humans ate the animals. Humans also would possibly eat nuts, fruits, vegetables, eggs, milk, and much more. However, not all people eat animal products, like meat, eggs, and milk. When someone doesn’t eat meat, their food chain might look like this:
Your Food Chain Activity
What does your food chain look like? I would like you to draw a picture of your food chain. Remember, a food chain represents different organisms and who eats who. Therefore, you will not draw a pizza. A pizza is not a plant or an animal. Everything on your food chain will be a plant or an animal, and include yourself.
Your Food Chain Activity
Turn to page 42 in your science notebook. Title the page:“My Food Chain”
Go ahead and get started!