The document describes three types of structures: 1) Solid structures which are made of a solid piece of material like cement pads, the earth, and trees. 2) Shell structures which have a solid outer surface and hollow inner area like cups, snail shells, eggs, and helmets. 3) Frame structures which have a rigid arrangement of joined parts like buildings, skeletons. Each structure is defined by its type, whether natural or man-made, purpose, and design.

1. Solid Structure
Shell Structure
Frame Structure
By: purple_pig

2. Structure made of a solid piece(or solid
combination of pieces) of strong
material.

3. Cement Pad
•Type- Solid
Structure
•Man Made
•Purpose- Is A Flat
Smooth Surface To
Hold Objects
•Designed To Hold
Heavy
Objects, Like
Vehicles, Bikes, Sco
oters, Etc.

4. Earth
•Type- Solid Structure
•Natural
•Purpose Is To Hold All
Living Organisms And
Such Like Humans,
Objects, Etc.
•Hold Living Organisms,
Like Humans In Different
Provinces In The World
Continents, Etc.

5. Trees
•Type- Solid Structure
•Natural
•Purpose, Is To Provide
Oxygen So We Can Breath
And For Organisms
Habitat, Houses,
Recreational, Etc.
•Designed To Let Off
Oxygen So We Can Breath,
And Also For Shelter, Etc.

6. Structure with a solid outer
surface(which may be rounded or flat
in shape) and a hollow inner area.

7. Styrofoam Cup
•Type- Shell Structure
•Man Made
•Purpose- Is To Hold
Objects Like Liquids
To Drink And Possibly
Solids
•Designed To Hold
Objects Like Water

8. Snail
•Type- Shell Structure
•Natural
•Purpose- The Shell Is Supposed To
Protect The Snail
•Designed To Protect The Snail From
Things, Its Like The Snails House, If
Its In Danger It Can Hide In The
Shell

9. Egg
•Type- Shell Structure
•Man/Natural Made
•Purpose- Is To Protect The
Chick Well It Is Growing
•Designed For Protection
For The Chick It Is Just
Like A Baby, The Placenta
Protects The Baby

10. Helmet
•Type- Shell Structure
•Man Made
•Purpose Is To Protect
Peoples Head
•Designed To Protect
Your Skull, Also
Prevents Injuries

11. Structure consisting of a rigid
arrangement of parts joined together.

12. Frame Structured
Buildings
•Type- Frame Structure
•Man Made
•Purpose- Is For
Different Climates Of
Weather, The Tall
Peaked One Is Designed
For Cold Weather So
That The Snow Doesn’t
Stay On The Roof

13. Building
•Type- Frame Structure
•Man Made
•Purpose Big Tall Building
For Lots Of Space Or For
Big Businesses
•Designed To Hold More
People And Objects, It
Could Be A Hotel So It
Might Have A Pool On The
Roof

14. Skeleton
•Type- Frame Structure
•Natural
•Purpose IS To Hold A
Humans Body All Together
•Designed So All The Bones
Are Connected, So We Are
Held Together