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science Flashcards

1
Q

Mixture

A

A substance made by combining 2 or more pure substances.

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2
Q

Solution

A

A type of mixture in which one substance dissolves in another, creating a see-through liquid. Example: Saltwater, sugar water, cordial.

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3
Q

Dissolve

A

To break up into tiny invisible particles.

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4
Q

Soluble

A

A soluble substance is a substance that can be dissolved. Example: salt and sugar are soluble in water, whereas sand is not.

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5
Q

Insoluble

A

A insoluble substance is unable to dissolve in a liquid. Example: sand and water.

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6
Q

Solute

A

The substance that is dissolved in a solution.

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7
Q

Solvent

A

The substance that preforms the dissolving in a solution.

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8
Q

Dilute

A

A solution with only a little solute in a lot of solvent.

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9
Q

Concentrated

A

A solution with a lot of solute.

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10
Q

Saturated

A

A solution in which the solvent cannot dissolve anymore solute. The additional solute will fall to the bottom.

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11
Q

Suspension

A

A mixture in which a substance cannot dissolve in the solvent, it will usually settle to the bottom of the container. Example: Sand + water, dust in air.

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12
Q

Magnetic separation

A

Used to separate magnetic substances from non-magnetic ones. Example: Iron filling from sand.

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13
Q

Gravity separation

A

Used to separate heavier substances from lighter ones. Example: Gold panning.

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14
Q

Sieving

A

Barrier with holes in it. Small substances can move through holes, larger ones can not. Example: spaghetti strainer.

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15
Q

Filtration

A

Similar to sieving, however uses filter paper with microscopic holes.

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16
Q

Centrifuging

A

Spinning machine that forces larger particles to the side then the bottom of the container. Example: Separating blood into plasma and red blood cells.

17
Q

Chromatography

A

when a mixture is seperated by making it move through different substances

18
Q

what is the difference between sewage and sewerage

A

sewage is the wastewater and sewerage is the pipes that take the wastewater away

19
Q

Jupiter

A

95 moons, 3 missions and 5th planet no rings

20
Q

venus

A

2nd planet from sun, mostly made from volcanoes, spins opposite direction, closest to earth and has no moons and no rings

21
Q

Saturn

A

it has rings, 164 moons ,uninhabitable, 6th planet

22
Q

Mercury

A

the first planet, the smallest planet, no moons, 0 rings, second density in planets

23
Q

Neptune

A

it has rings, a hard and molten core, a day is only sixteen hours, and 14 known moons

24
Q

Uranus

A

27 moons, it has ri/ngs, 7th planet, not conducted for life

25
Q

Earth

A

no rings, 1 moon, it is made from crust, third planet

26
Q

Mars

A

2 moons, no rings, 14 missions, inhabitable for life

27
Q

Impurities

A

the unwanted substances

28
Q

Constilations

A

A picture or pattern you can see while looking at the stars

29
Q

Meteor

A

When a Meteorite goes through the atmosphere causing it set on fire

30
Q

Retrograde motion

A

when a planet moves backwards or left to right

31
Q

moon phases

A

the different ways that we see the moon

32
Q

Milky way

A

A constellation of billions of stars

33
Q

Dwarf planet

A

A planet in the Kuiper belt and does not qualify to become a planet

34
Q

Meteoroid

A

A small rock or debris in space

35
Q

Artificial Satellites

A

A small star-looking machine that observes plants

36
Q

Geo centric model

A

when the Earth is in the center of the solar system

37
Q

Heliocentric model

A

A version of the solar system where everything rotates the sun

38
Q

Orbit

A

The path in space that a mass will travel continuously

39
Q

Lunar eclipse

A

When sunlight is blocked off from reaching the moon

exam study flash cards (3 decks)

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