vocabulary 7

mixture: two or more parts blended together yet keeping their own properties and not turning into a new substance.

solution: a mixture in which substance are completely blended so that the properties are the same throughhout and the substance stay blended.

suspension: a mixture of substance that separate upon  standing.

colloid: particles (or droplets ) large enought to block out light spread throughout another substance.

emulsion: a liquid spread through another liquid.

aerosol: liquid drops or solid particles spread through a gas.

gel: a solid spread trough a liquid.

foam:a gas spred trough a liquid or solid.

vocabulary 6

state of matter: any of the forms matter can exist in.

melting point: the temperature at which a solid changes state into a liquid.

boiling point: the temperature at which  a liquid changes state into a gas.

freezing point: the temperature in which a liquid ckanges state into a solid.

vocabulary # 4

element : a basic building block of matter; a pure substance that  cannot be broken  down into any thing simplier.

compound : a chemical combination  of two or more elements into a single substance.

atom: the smallets unit of an element that still has the properties of the element.

proton : a particle with a positive  charge in the nucleus of an atom.

neutron: an uncharged particle in the nucleus of an atom.

electron : a particle with a negative charge moving around the nucleous of an atom.

nucleus :  the dense center part of an atom.

molecule: a group of more than one atom joined together that acts like a single particle.

album#2

The planets are large bodies that are in  a solar system.

Mercury : is the first planet from the sun it is a big rock that is hot.

Venus : is the second planet from the sun is bigger than mercury but also is hot.

Earth : is the third planet have a perfect distance from the sun , is the only planet now that can have live in it.

Mars :is the fourth planet and also Mars is calledthe red planet beacause it shines and planet see red.

Jupiter : is the fifth planet is one of the biggest planets a year in Jupiter have 4,333 days.

Saturn  : is the sixth planet from the sun and to complete a spinning takes 10 hours and 40 minutes and a year takes 10 ,759.

Uranus : is the seven planet from the sun and a year there takes 30,685 days and a day takes17 hours and 14 minutes.

Neptune : is the last planet  and so hit has the biggest orbit and a year takes 60,188 days.

Pluto :  is not a planet bea cause he have not the size needit to classify it as a planet and it have not a normal orbit beacause it pass through the orbit of  Neptune it is classify as a big rock.

conclusion : they are not galaxy without planets and that the Earth is the only   planet  that can have live now so take care of it  and if you don´t take care of it the Global Warming will come in less time.

vocabulary#3

mass: the amount of matter in an object.

volume: the amount of space an object takes up.

weight: (on Earth) a measure of the force of gravity between Earth and an object.

density: a measure of how toghtly packed matter is; the amount of mass contained in a given volume.

buoyancy: the upward push on an object by the liquid ( or gas) the ob ject is placed in.

conduct: allow heat or elctricity to flow through it readily.

insulate: not allow heat or electricity  to flow through readily.

vocabulary#2

opaque: completely blocking light from passing through them.

transparent: letting all light through, so that object on the other side can be seen clearly.

 translucent:letting only some light through, so that objects on the other side appear blurry.

polarization: allowing light vibrationsto pass through in only one directon.

refraction: the bending of  light rays as they pass from one substance to another

convex lens:a lens that curves outward (is thicker at the middle than at the edges) and brings light rays togethe

concave lens:a lens that curves inward  (is thicker at the edges than at the mirror) and spreads light rays part.

vocabulary#1

biolunescene:light produce by living organism

light ray :a straight-line beam of light as it traqvels outward from its sources.

Lawf Reflection: the angle of the incoming light ray equals the angle of the reflected ray.

concave mirror: a mirror that curves in on tje shiny side.

convex mirror: a mirror that curve out on the shiny side.