Science 3G Unit E, Ch 1 Properties of Matter Science Unit E, Ch 1 Review

Science 3G Unit E, Ch 1 Anything that has mass and takes up space? matter Matter 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.

Science 3G Unit E, Ch 1 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.

Science 3G Unit E, Ch 1 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.

Science 3G Unit E, Ch 1 What are physical properties of matter that you can SEE? size shape color

Science 3G Unit E, Ch 1 Name some physical properties of matter that you can FEEL? Hardness (hard or soft) Texture (smooth or rough) Temperature (warm or cool)

Science 3G Unit E, Ch 1 Name a physical property of matter you can smell, taste, or hear? Smells strong Tastes sour Makes a ping when tapped

Science 3G Unit E, Ch 1 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

Science 3G Unit E, Ch 1 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).

Science 3G Unit E, Ch 1 How do we measure mass? Mass is measured in units of grams. We can use a pan balance to find the mass of marbles.

Science 3G Unit E, Ch 1 volume The 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.

Science 3G Unit E, Ch 1 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.

Science 3G Unit E, Ch 1 Name the three states of matter? solid, liquid and gas Although there are many of different kinds of matter, they can be sorted into these 3 categories.

Science 3G Unit E, Ch 1 Matter that can keep the same shape and volume. solid We 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.

Science 3G Unit E, Ch 1 Matter that can change in shape but not in volume liquid Liquids 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.

Science 3G Unit E, Ch 1 Matter that can change in both shape and volume gas When 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.

Science 3G Unit E, Ch 1 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).

Science 3G Unit E, Ch 1 The process in which a solid becomes a becomes a liquid melting When we raise the temperature of some solids they will melt into a liquid. The molecules begin to loosen and flow.

Science 3G Unit E, Ch 1 The process in which a liquid becomes a solid freezing When we lower the temperature of a liquid, the particles will attach tightly to one another and freeze in place.

Science 3G Unit E, Ch 1 The process in which a liquid becomes a gas evaporation When 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.

Science 3G Unit E, Ch 1 The process in which a gas becomes a liquid condensation When 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.

Science 3G Unit E, Ch 1 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.

Science 3G Unit E, Ch 1 In which state of matter are molecules still connected, but loose like beads on a string? Liquid The 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.

Science 3G Unit E, Ch 1 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.

Science 3G Unit E, Ch 1 What is a particle? A particle is a part of the of object

Science 3G Unit E, Ch 1 What is a molecule? The smallest part of matter that still has the properties of the matter. A molecule of water is still water.

Science 3G Unit E, Ch 1 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.