Matter is anything that occupies space and has mass. It is the substance of which physical objects are composed. Matter is made up of atoms, which are the basic building blocks of all elements. At the atomic and subatomic levels, matter exhibits particle-like behavior.
There are three classical states of matter:
Solid: In a solid state, particles are closely packed together, and they vibrate but do not move from their fixed positions. Solids have a definite shape and volume.
Liquid: In a liquid state, particles are still close together, but they have more freedom to move. Liquids have a definite volume, but they take the shape of their container.
Gas: In a gaseous state, particles have a lot of freedom to move. Gases do not have a definite shape or volume and expand to fill the shape of their container.
cing:
Dereferencing a pointer means accessing the value stored at the memory address it points to.
The dereference operator (*) is used to retrieve the value from a pointer. For example, int y = *ptr; assigns the value at the memory location pointed to by ptr to the variable y.
Null Pointers:
A null pointer does not point to any memory location. It is often used to indicate that the pointer is not currently pointing to a valid object.
Initializing a pointer to nullptr (in C++) or NULL (in C) sets it to a null value.
Pointer Arithmetic:
Pointer arithmetic involves m
4. Solids
• A solid has its own
shape.
• A solid does not
change unless you
cut, bend, or break it.
• Solids take up space
and have mass.
5. Liquids
• Liquids do not have
their own shape.
• Liquids take the
shape of their
container.
• Liquids take up space
and have mass.
6. Gases
• Gases have no definite
size or shape.
• Gases take the shape of
its container.
• A gas will fill all the space
inside a container.
• Gases take up space and
have mass.
7. Water is matter.
Did you know it comes in all 3 forms?
A Solid A Liquid A Gas
ice water vapor
water
8. Matter has certain properties.
• Matter can have color.
• Matter can be different sizes.
• Matter can have different shapes.
• Matter can have texture.
• Matter can be rigid or bendable.
• Matter also takes up space
and has mass.
Properties are the characteristics of
matter, how something looks or feels.
9. We can group objects by their properties.
How can we group these objects?
10. 1. Did you sort them by color?
One property is color.
Color
Red
Green
Yellow
