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Upper Elementary Science - I
2.37 Cells: The Building Blocks of Living Things

When you look at the back of your hand with a magnifying glass, the hairs look thicker and the skin looks like it has little hills and valleys. With a super powerful magnifying glass, look at just one hair. It makes the hair look almost like a telephone pole sticking up out of the ground. And when looked even closer, you see that the hair is made up of many many little pieces. Each one of those little pieces is called a cell.

All living things are made up of cells. Cells are the building blocks of all plants and animals. Every living thing a flower petal, a maple leaf, a blade of glass, a worm, human body, all is made up of cells.

The super powerful magnifying glasses are called microscopes. Microscopes help us see things that are much too small to see just with our eyes. With the help of microscopes we understand a lot about cells.


Directions: Answer the following questions. Write about cells in your own words.
Q 1: ________ are the basic building blocks of all plants and animals.
Tissues
Organs
Cells

Q 2: Cells come from _____.
other cells
air
water

Q 3: The super powerful magnifying glasses that are used to see the _____________ are called microscopes.
cells
organs
tissues

Q 4: ________________ help us see things that are much too small to see just with our eyes.
stethoscope
microscopes
telescope

Q 5: Some organisms, such as bacteria, are unicellular; it means, they have ____.
many cells
no cells at all
only one cell

Q 6: There is only one type of cell.
true
false

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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