Lesson 1.3 - Microbiome

Poll

You’ve been learning about tiny organisms that are made of a single cell! But are there objects even smaller than a cell?

Choose the statements below that you agree with. You can choose as many as you want. It’s okay if you aren’t sure.

• Cells are the smallest things that exist.

• Molecules are smaller than cells.

• Cells are smaller than molecules.

• Molecules are made of cells.

• Cells are made of molecules.

Open Ended

Explain why you chose these statements.

Open Ended

What are molecules? What do you already know about molecules?

Multiple Choice

Can you observe microorganisms on your hand?

• yes

• no

Multiple Choice

Do you think there are any microorganisms on your hand?

• yes

• no

Multiple Choice

Can you see evidence of microorganisms?

• yes

• no

Open Ended

Describe what you observe in the petri dish.

Open Ended

Make a prediction: What do you think the petri dish will look like on Day 5?

Multiple Choice

Can you see evidence of microorganisms?

• yes

• no

Open Ended

Describe what you observe in the petri dish.

Open Ended

Make a prediction: What do you think the petri dish will look like on Day 9?

​With your partner you will fill in the words to make sentences that could answer the Chapter 1 Question: How small are the microorganisms that live on and in the human body?

​Work with a partner to answer the Chapter 1 Question

Dropdown

All microorganisms are made of​

Select answer

. A​

Select answer

is too small to see; it is

Select answer

. A microorganism is microscopic, but is made of cells, which are even​

Select answer

. A microorganism is larger than a cell and much larger than a

Select answer

.

Open Ended

1. Revise your response so it includes what you have learned in the last few lessons.
   
   You may wish to use the following science words in your revised response.

   • cell

   • micrometer

   • microorganism

   • microscopic

   • molecule

   • nanometer