Untitled Quiz

force/area

distance/time

average speed*time

distance /average time

when the forces are balanced

it is defined as a push or pull

It depends on whether the push or pull have the most valueand depending on that the object will accelerate/decelerate

The pivot(where the lever pivot turns), The load(the part that you are trying to move) and the effort or force you are using to move it.

The increase in carbon dioxide in the atmosphere traps more heat radiation from the earth

composite

Photosynthesis

Hydrogen and Carbon

Mostly Carbon Dioxide, Some Ammonia, Some methane, Little oxygen

21% Oxygen, 78% Nitrogen and 1% othere gases

Crust solid, mantle liquid, outer core liquid, inner core solid

Becuase it takes millions of years to be formed.

Along the earth's plate boundires.

A combination of two materials with different chemical and physical properties.

Carbon, hydrogen, oxygen, nitrogen, sulpher, chlorine and polymers

A monomer and they are obtained from crude oil

The way the molecules are arranged, temperate, made from different monomers, chain length and arrangement of polymer chains.

Stronger the forces, the tougher the plastic and higher its melting point

tails, sperm cell, head and nucleus

cytoplasm, nucleus, ovar or ovar(more than one(2)),cell membrane

ovidect or fallopian tubes, ovaries, cervix, uterus or womb, vagina

bladder, glands, uretha, penis, foreskin,scrotum, seminal vesicles

The egg cells are released from the ovaries and the the egg cells travel down the oviducts on their way to the uterus. When a woman is pregnant, the cervix helps hold the baby in place. The baby develops in the uterus.

Sperm cells are made in the tested. The tubes that the sperm cells travel down on their way out of the body are the urthra and spermduct. The head of the penis is protected by the foreskin. Glands add speical liquids to the sperm cells to make semen.

It is when egg cells are released from the ovaries. Before an egg cell is released it must mature. The release of an egg cell is called ovulation. If the egg cell meets a sperm cell it will be fertilised. If it does not, it will pass out through the vagina.

Menstruation is the process of the uterus lining breaking apart. Another name for this is having a period. During this time the uterus lining and a little blood passes out of the vagina.

`implantaion is when an egg cell imbeds itself into the lining of the womb or uterus.

Fertilisation is when the sperm meets the egg cell.

1. An egg is released by the ovary in a process called ovulation. 2.The egg travels down the fallopian tube where it will meet the sperm, fertilisation will take place. 3. The fertilised cell while divide into a ball of cells. 4. This ball of cells will embed itself into the lining of the uterus, this is known as implantation.

study

An atom is the smallest piece of matter that can take part in a chemical reaction

An element is a pure substance made up of only one type of atom, Anything from the periodic table.

A compound is a substance made up from more than one type of atomt, that are chemically bonded together.

A molecule is two or more atoms cheimically bonded together.

Not easily reversable, involves the breaking of chemical bonds, gernerates new products.

They are reversbale, Change of state (e.g. melting, freezing etc...), No change in the chemical bonds, No change in its chemical properties.

Atoms join together by electrostatic attractions called Bonds(chemical). When they do so they form molecules.