Science Review

Front 1

Safety Equipment you want when doing an experiment with open flame

Back 1

safety googles, heat-proof apron, eye wash, fire extinguisher and a fire blanket

Front 2

Tools

Back 2

Spring scales used to measure weight,

Balance scales are used to measure mass and weight

Front 3

Reading a triple beam balance

Back 3

Start with largest place value

Front 4

Taking a nature hike to observe things bring

Back 4

camera, hand lens, collecting nets, journal for notes and something to put samples in.

Front 5

Two apples on a triple beam balance have a mass of 660.

Back 5

Each apple weights 330.

Front 6

Reading a graduated cylinder

Back 6

Read the bottom of the meniscus

Front 7

Physical properties of states of matter

Back 7

Salt and sugar are soluble in water. The grains of salt and sugar are reduced to their smallest particle, too small to be seen , and are surrounded by water.

Front 8

Metals (silver. copper, aluminums, brass, iron)

Back 8

conduct heat better that other materials. Some materials will burn or melt and are not good to test heat conductibility on.

Front 9

Pure water boils at 100 degrees celsius

Back 9

Sugar will boil at a higher temperature depending on the amount of sugar in the water.

Front 10

Pure water boils at 100 degrees celsius

Back 10

it does not matter if you only have a cup or if you have 100 liters, the pure water boils at 100 degrees celsius

Front 11

Sugar and salt dissolve faster in hot water because

Back 11

the water molecules speed up as the water gets warmer.

Front 12

You could test which containers keep liquids hot by

Back 12

pouring water in different containers made of different materials (ex: plastic, foam, paper, metal)

Front 13

Wind turbines

Back 13

will produce more kilowatts of energy on a windy day. The more kilowatts produced the windier the day.

Front 14

Weather maps

Back 14

are used to help predict the weather. Weather maps can be used to warn people in areas of approaching bad weather.

Front 15

You could build a model of how human lungs change shape by

Back 15

using a two liter bottle with 2 balloons to grow and shrink as you squeeze and release the bottle.

Front 16

Isaac Newton studied the motion of forces and gravity.

Back 16

This is useful for people working wih anything dealing with motion.

Front 17

Solid to liquid

Back 17

melting

Front 18

liquid to gas

Back 18

evaporation

Front 19

gas to liquid

Back 19

condensation

Front 20

liquid to solid

Back 20

freezing

Front 21

Mixtures can be separated by the following

Back 21

relative density: wood, corks, etc. float in water

metal, glass, rocks sink in water.

Front 22

Magnetic property can

Back 22

be used to separate magnetic items from nonmagnetic items

Front 23

Solar Panels

Back 23

store the sun's energy to heat homes, they work best when facing the sun

Front 24

Physical Properties can be used to sort different types of matter

Back 24

color, magnetic, conductor, insulator, size, shape, relative density, combustibility, and mass

Front 25

To increase reliability of an experiment you should

Back 25

repeat the experiment at least 3 times. The more you repeat the experiment the more reliable your results will be.

Front 26

In an experiment you should have only one variable. To increase reliability of an experiment you may want to plant more groups of the same type plant with different kinds of your variability.

Back 26

Example: Plant more groups of tomato plants using different types of lighting. (sun, flourescent light, black light, 100 W lamp)