[image]

A circle with a tude like item inside.

[image]

A circle witha flame inside.

[image]

A circle with a flame around a circle inside.

[image]

A circle with a skull and cross bones inside.

[image]

A circle with a T-like exclamation mark inside.

[image]

A circle with a 3 figured symbol.

[image]

A circle with a test tude spilling on a item and a hand, burning them

[image]

A circle with a shinning R inside.

What are the risks for compressed gas?

[image]

What are the risks for flammable materials?

[image]

Catches fire easily

May ignite without warning

What are the risks for oxidizing material?

[image]

Maybe cause combustible material to explode

Increases fire hazards

What are the risks for poisonous materials causing immediate toxic effects?

[image]

What are the ricks of poisonous material causing others toxic effects?

[image]

What are the risks of biohazardous material?

[image]

What are the symbols for corrosive materials?

[image]

Causes eye and skin irritation on contact

Severe burns after long period of contact

What are the risks of reactive materials?

[image]

May react violently with water

May explode if exposed to heat or shock

What are the precautions of compressed gas?

[image]

Keep away from heat

Store it safely (not on a high shelf where it could fall)

What are the precautions of flammable material?

[image]

Keep away from anything can catch fire

Store in a safe place, away from flame sources

What are the precautions of oxidizing materials?

[image]

Keep away from combustible materials

What are the precautions of poisonous materials causing immediate toxic effects?

[image]

Don't taste or smell it

Don't get it on you

What are the precautions of posionous material that causes others toxic effects?

[image]

Keep in a special place

Use only if extremely necessary

Take every precaution

What are the precautions of biohazardous materials?

[image]

Don't let loose

Keep it contained

Keep in protected areas

What are the precautions of corrosive materials?

[image]

Wear all safety material (goggles, gloves, suit)

Wash immediatly if you get in on you

What are the precautions of dangerously reactive materials?

[image]

Keep away from water and heat

Dont drop it

What is the symbol for explosive material?

(hazardous household products)

What is the symbol for corrosive?

(hazardous household products)

What is the symbol for flammable material?

(hazardous household products)

What is the symbol for poison?

(hazardous household products)

What is the danger of explosive material?

(hazardous household products)

[image]

Can explode if heated or punctured

Flying pieces of metal or plastic can cause serious injuries

What is the danger of corrosive materials?

(hazardous household products)

[image]

What is the danger of flammable materials?

(hazardous household products)

[image]

What is the danger of poisonous materials?

(hazardous household products)

[image]

What is the precaution for explosive materials?

(hazardous household products)

[image]

Keep away from heat

Dont drop

What are the precautions of corrosive materials?

(hazardous household products)

[image]

Don't touch directly with skin

Wear gloves

Don't smell or taste that chemical

What are the precautions of flammable material?

(hazardous household products)

[image]

What are the precautions of poisonous material?

(hazardous household products)

[image]

Matter is anything that has mass and volume (has weight and takes up space)

All matter has physical and chemical properties

Which one is a graduated cylinder?

[image]

[image]

[image]

Which one is the Beaker Tongs?

[image]

             [image]        [image]

Which one is the Pestle Mortar?

[image]             [image]             [image]

Which one is the Erlenmeyer Flask?

      [image]      [image]           [image]

Which one is the stirring rod?

         [image]          [image]         [image]

Which one is the scoopula?

     [image]           [image]             [image]

Which one is the test tube?

    [image]               [image]       [image]

Which one is the rubber stopper?

     [image]        [image]    [image]

Which one is the striker?

    [image]         [image]        [image]

How is the graduated cylinder used?

[image]

How are the Beaker tongs used?

[image]

How is the Pestle Mortar used?

[image]

How is the erlenmeyer flask used?

[image]

How is a stirring rod used?

[image]

How is a scoopula used?

[image]

How is a test tube used?

[image]

How is a rubber stopper used?

[image]

How is a striker used?

[image]

[image]

oxygen, fuel, heat

They are formed from decomposing plants, animals and microorganisms that lived many years ago.

The energy in their cells still remains 'locked up'; fossil fuels

Because human technology depends on them.

They power homes, industries, and various means of transportation.

The reactants are carbon dioxide and water vapor.

The products are hydrocarbons.

The greenhouse effect is when heat is trapped into a space, the sun can come through but heat cant get out.

Carbon dioxide gas produced by

combustion in industry and automobile engines increase the greenhouse effect.

A chemical symbol is an abbreviation od the name of an element.

The abbreviation however, may not be of the English language.

Matter is anything that has:

-mass and energy

- volume and energy

- mass and volume

- energy

Aluminum can be bent into various shapes. This statement describes which property?

- density

- ductility

- malleability

- viscosity

Which of the following properties of magnesium is a physical property?

- magnesium burns in air with a brilliant white flame

- magnesium reacts with hydrochloric acid to produce gas

- magnesium is shiny

- magnesium combines with nitrogen to form a black powder

Which of the following properties is a chemical property?

- hydrogen reacts explosively with oxygen

- mercury is liquid at room temperature

- tin is malleable

- the density of gold is 19.3g/cm3

Which of the following clues is NOT a clue of a chemical change?

- change of state

- change of color

- bubbes form

- precipitate forms

What kind of change is this (physical or chemical) and what is the evidence?

Burning Coal

Chemical Change

heat or light given off

What kind of change is this (physical or chemical) and what is the evidence?

Rolling up the rim on a coffee cup

Physical Change

Change of form

What kind of change is this (physical or chemical) and what is the evidence?

Baking Bread

Chemical Change

Change of color

What kind of change is this (physical or chemical) and what is the evidence?

Water vapor in the air turns to frost

Physical Change

Change of state

What kind of change is this (physical or chemical) and what is the evidence?

Chocolate is melted

Physical Change

Change of state

In models of molecules:

- atoms are held together by connections called _______

- atoms are represented by ______ _______

- bonds

- colored spheres

Molecules can also be represented by drawings called _________

- each atom is represented by its _______

- each bond is represented by a ________ ____

- structural diagrams

- symbol

- straight line

A physical property is a characteristic or description of a substance that may help to identify it.

A physical property does not involve a substance becoming a new substance

- color

- texture

- odour

- lustre

- clarity

- taste

Malleability is the ability for material to be hammered into thin sheets or bent into different shapes

Example: aluminum foli

Ductility is the ability for a material to be drawn out into a long, thin wires.

Example: copper

Solubility is the ability of a substance to dissolve in a solvent such as water

Example: salt

- melting (solid -> liquid)

-  evaporation (liquid -> gas)

- boiling (liquid -> gas)

- freezing (lquid -> sold)

- condensation (gas -> liquid)

- sublimation (gas -> sold/solid -> gas)

- blowing up a ballon

- cutting an apple

- substance changes without becoming anything new

- often easy to reverse

- always causes at least one new substance with new properties to be formed

- difficult to reverse

- burning paper

- rusting on nails

Temperature is an example of:

biotic or abiotic?

Sunlight is an example of:

biotic or abiotic?

- plants

- algae

- carnivore

- harbivore

- scavenger

- decomposer

- Biosphere

- Biome

- Ecosystem

- Community

- Population

- Individual

- atmosphere: layer of gases surrounding the earth

- lithosphere: earths solid outer layer

- hydrosphere: all water on earth

interaction of the community with local abiotic factors:

- temperature

- sunlight

- wind

- oxygen

populations of different species that live and interact in a certain area

Example: rock bass, seaweed, frogs, trout, and turtles

a group of organisms from all the same species that live within a certain area

species: a group of organisms that can mate with eachother and produce fertile offspring

A unique organism

Example: one rock bass

An organism that makes its own food by the process of photosynthesis

Example: plants

An organism that eats other organisms in a food chain. They can't make their own food.

Example: Snake, fox

An animal that feeds on plants

Herbivores are primary consumers

An animal that fees on another

Example: Owl -> top carnivore else preys on it

An organism that feeds on both animals and plants

Example: mice

on organism, often a bacteruim or fungus, that feeds on an breaks down dead plant or animal matter. They get nutrients for their own use, but they also recieve nutrients back into soil and water (recyclers)

detritus is waste from plants and animals including their dead remains

sun

carbon dioxide

water

glucose

growth

repair of damage tissue

reproduction

- in the atmosphere

- in bodies of living things

- in the earth's crust

- oceans

Three ways that carbon dioxide is released into the air:

- burning fossi fuels

- volcanoes

- cellular respiration

Carbon dioxide is taken out of the atomosphere by:

- photosynthesis

- dissolving in oceans

- forming carbonate

- tundra

- boreal forest (tagia)

- temperate deciduous

- grassland

Prey:

Predator:

is the organism that is eaten

is the organism that eats

- mutualism

- commerisalism

- parasitism

- lightning

- bacteria

lightning accounts for only about 1% of the world's nitrogen fixation (it only fixes a small amount of nitrogen into nitrates)

Energy from lightning causes nitrogen and oxygen in the atmosphere to react, producing nitrates

nitrogen-fixation are capable of converting nitrogen gas into ammonia

Ammonia is not useful to most plants. Bacteria called nitrifying bacteria converts this ammonia into nitrites, and then into nitrates (which plants can use!)

- iron

- oxygen

- paint the item

- coating with other metals

1. all matter is made up of extremely tiny particles

2. each pure substance has its own kind of particle, different from the particles of other pure substances

3. particles attract eachother

4. particles are in constant movement

5. particles at a higher temperature are moving faster than particles at a lower temperature

Materials that don't allow electrons to move freely from atom to atom

Example: plastic

Materials that allow charges to move freely.

When a conductor is charged, the charge spreads out evenly throughout the conductor

- charged objects

- the ground

- the ground

- charged objects

1. Produces nitrates which help plants grow

2. Produces ozone (ozone layer)

- charging by friction

- charging by contact

- induced charge seperation

- charging by induction

Electrons will not travel freely through which of the following?

 a) copper

b) salt water

c) silver

d) wood

When a negative ion is formed, an atom must

a) lose an electron

b) lose a proton

c) gain an electron

d) gain a proton

When an object is charged by contact which subatomic particles move?

a) electrons

b) neutrons

c) protons

d) electrons or protons, depending on the charge

- number

- pass

- gained

- lost

- Aikali metals

- metals

- metaloids

- noble gases

- halogens

- non-metals

- earth

- sun

Apparent magnitude refers to the _________________________________

__________________________________

Absolute magnitude refers to

_________________________________

_________________________________