science 3g unit e, ch 1 properties of matter science unit e, ch 1 review

Science 3GUnit E, Ch 1

Properties of Matter

Science Unit E, Ch 1 Review

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Anything that has mass and takes up space?

matterMatter is the stuff things are made of. Things are made of different kinds of matter, most of

which we can see, but gases may be invisible.


Name some different kinds of matter can be found in a car?

metal, plastic, fabric, gasoline, and air.

Choose your own object and name some matter found in it.


Physical Property

Something that you can observe about an object by using your senses. How

does it smell, taste, feel, sound or look? What shape, color or size is it?

Some physical properties of a rose are that it smells sweet, looks small and red, feels soft

on its petals, feels sharp on it’s thorns.


What are physical properties of matter that you can SEE?

size

shape

color


Name some physical properties of matter that you can FEEL?

Hardness (hard or soft)

Texture (smooth or rough)

Temperature (warm or cool)


Name a physical property of matter you can smell, taste, or

hear?

Smells strong

Tastes sour

Makes a ping when tapped


Which group of words names physical properties of matter?

a) water, vinegar, oil

b) sandpaper, mirror, wool

c) solid, liquid, water

d) sweet, green, rough


Mass

The amount of matter in an object?

Whether a cotton ball is fluffed out or squeezed tightly, it has the same

amount of matter (stuff).


How do we measure mass?

Mass is measured in units of grams. We can use a pan balance to find

the mass of marbles.


volumeThe amount of space

matter takes up.All things take up space. Two things cannot occupy the same space at the same time. Although squeezing a cotton ball will not

change its mass, it will take up less space. Its volume will be smaller.


How can we measure volume?

We can use a graduated cylinder to determine how much space 2 marbles occupy.

We can measure the volume of a rectangle in cubic units (cubes).

We measure the volume of liquids in gallons, cups, liters, milliliters, pints and ounces.


Name the three states of matter?

solid, liquid and gasAlthough there are many of different kinds of matter, they can be sorted into these 3

categories.


Matter that can keep the same shape and volume.

solidWe can change the shape of Play-dough, but it is

still a solid because it CAN keep is own shape. The amount of space Play-dough takes up will not

change even if we change its shape.


Matter that can change in shape but not in volume

liquidLiquids take the shape of the container they are in. When we pour lemonade from a wide container to a

narrow container, it’s shape becomes taller. The volume (amount) of lemonade stays the same. Only

its shape has changed.


Matter that can change in both shape and volume

gasWhen we put gas in a container, it spreads out

and fills all the space in the container. The larger the container, the more space the gas will fill.

When you fill a balloon with helium, the whole balloon fills. When the balloon pops the helium spreads throughout the entire room. It only seems to

disappear.


How does matter change it’s state?

A change in temperature causes particles to move quickly or slowly. As particles heat up, they begin to move more rapidly, and become loose. When particles are loose, they cannot hold their own shape. We call this liquid. When they move so quickly that they escape from the other particles, they evaporate into a gas. Although solids don’t always feel cold they are matter which is holding still (frozen in place).


The process in which a solid becomes a becomes a liquid

meltingWhen we raise the temperature of some solids they will melt into a liquid. The molecules begin to loosen

and flow.


The process in which a liquid becomes a solid

freezingWhen we lower the temperature of a liquid, the particles will attach tightly to one another and

freeze in place.


The process in which a liquid becomes a gas

evaporationWhen we boil water, it changes it’s state from liquid to gas. This is why we say water will evaporate. A

towel dries after a shower, because the water evaporates and moves into the air as a gas.


The process in which a gas becomes a liquid

condensationWhen gasses cool, the particles will move together into drops. Water vapor accumulates into clouds. Steam from a shower will form drops on a cool

mirror.


In which state of matter are molecules packed very close together and held together

with tight bonds?Solid

The molecules of a solid are frozen together, which causes them to keep their shape. When we mix solids together, they can be easily separated. Matter which can

be easily separated is a mixture.


In which state of matter are molecules still connected, but loose like beads on a string?

LiquidThe molecules of liquids are packed together

closely, but move around freely. They slide over and under each other, which allows them to flow. They are fluid. When fluids are mixed together, they are difficult to separate. This is a solution.


In which state of matter are molecules no longer connected, and move in all directions at high

speeds?Gas

The volume and shape of gas is the same as the volume and shape of its container. When helium is released

from a balloon, it quickly spreads out to fill all the space in a room.


What is a particle?

A particle is a part of the of object


What is a molecule?

The smallest part of matter that still has the properties of the matter. A molecule

of water is still water.


What is an atom?

Molecules of water are made by combining hydrogen and oxygen atoms. Atoms are what molecules are made from. Example: a crumb of cake is like a molecule, however, cake is made from combining flour, eggs and other

ingredients. The ingredients of a cake are like atoms. When we combine them, we can

make something new.

science 3g unit e, ch 1 properties of matter science unit e, ch 1 review

Documents

matter matter

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matter stuff

states of matter

rough slide

physical property of

cool slide