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My Tiny Growing Cells! (A Mitosis Adventure)

Smart Worksheet
Pre-K (Age 3–4)
English

My Tiny Growing Cells! (A Mitosis Adventure)

My Tiny Growing Cells!

Welcome to the world of tiny cells! Cells are the little building blocks that make up your whole body. When you grow taller, your cells make magic twins so there are more of them! This is called Mitosis (say: My-Toe-Sis).


Activity 1: Trace the Mama Cell

Look at this happy cell! She is getting ready to grow. Use your crayon to trace the dotted line of the circle.
fig 1: A single, happy cartoon cell with a central nucleus.
fig 1: A single, happy cartoon cell with a central nucleus.

Trace the circle here:
( . . . . . . . ) ( . . . . . . . ) ( . . . . . . . )


Activity 2: Color the Cell Twins

The cell has split into two! Now there are two tiny twin cells. Use your favorite colors to make them look exactly the same.
fig 2: Two identical happy cell twins standing side-by-side.
fig 2: Two identical happy cell twins standing side-by-side.

My cells are the color: ____________________


Activity 3: The Counting Game

Wow! Look at all these cells. They are multiplying to help you grow! Count how many cells you see in the picture below.
fig 3: A colorful group of four simple cartoon cells scattered together.
fig 3: A colorful group of four simple cartoon cells scattered together.

I count cells!
(Write the number or draw that many dots below)



Activity 4: The Magic Mirror

When a cell divides, it makes a copy that looks just like itself in a mirror! Circle the two cells that look exactly the same.
fig 4: A cute cartoon cell looking in a mirror and seeing its reflection.
fig 4: A cute cartoon cell looking in a mirror and seeing its reflection.

Are they the same? (Circle one)
[ YES ] [ NO ]


Activity 5: One Becomes Two

Draw a line to match the single cell on the left to the two cells on the right. This shows how one cell splits into two!
fig 5: Diagram showing one cell on the left and two twin cells on the right.
fig 5: Diagram showing one cell on the left and two twin cells on the right.

Match them with a line!


Activity 6: Growing Taller!

When we have more cells, we grow bigger. Look at this chart. On which day did the cells grow from 1 to 2?
fig 6: Bar chart showing cell growth over three days.
fig 6: Bar chart showing cell growth over three days.

Circle the correct day:
[ Day 1 ] [ Day 2 ] [ Day 3 ]


Activity 7: Find the Identical Twin

Look at the cells below. Draw a circle around the two cells that are the same size and shape.
O o O .
(Circle the two big 'O's!)


Activity 8: Give the Cell a 'Brain'

Every cell has a center part called a nucleus. It tells the cell what to do. Draw a big dot in the middle of these two empty cells.
( ) ( ) ( ) ( ) ( ) ( )


Activity 9: The Stretching Cell

Before a cell becomes two, it stretches out like a piece of bubblegum! Try to draw a long 'peanut' shape in the box below to show the cell stretching.
|--------------------------------| | | | (Draw here!) |



Activity 10: Happy New Cells!

When cells finish dividing, they are happy because they have a new friend. Draw a big smiley face on these two new cells!
( ^ _ ^ ) ( )