Assessment3 Flashcards
An energy transfer diagram shows the energy — in a process or —.
changes/ is transferred; device.
An energy transfer diagram shows the—–.
different energy stores involved in a process.
Energy is transferred in processes that—–.
change something
In — processes, some energy is transferred to the —, and —–a little bit.
all, surroundings, heats them up
Two reasons why energy heats up surroundings:
* things are —–.
* — is produced.
heated by friction
sound
Eventually all energy ends up in —–.
the surroundings
Energy that is dissipated is —.
Energy that is dissipated is usually transferred to —–, which get hotter.
no longer useful, the surroundings
Vertebrates are animals with —.
backbones
The vertebrates were classified into — groups:
—,—,—,—,—
five; fish, amphibians, reptiles, birds, mammals
Fish live in —:
—– their bodies
—– in —
— to —
— and —
— temperature varies with the —–
water; Scales covering; Lays eggs; water; Gills; breathe; Fins; tail; Body; temperature of surroundings
Amphibians live in —– at different times in —:
—– skin
—– in —
— legs
Breathe through —– when —
Body temperature —–
water and on land; life cycles; Moist, smooth; Lay eggs; water; Four; skin and lungs; adult; varies with the temperature of surroundings
Reptiles don’t need —–:
—– skin
Lays eggs with —–
— legs, except snakes
— to —
Body temperature —–
water to breed; Dry, scaly; leathery skin on land; Four; Lungs; breathe; varies with the temperature of surroundings
Birds live —–, some spend a lot of time —–, most can —
— and —
Lay eggs with —–
Two —, two — (even if can’t fly)
Breathe —–
—– body temperature
on land; in water; fly; Feathers; beak; hard shells on land; legs; wings;
using lungs; Control their
Most mammals —–, some in water, few —
Have —
Give birth and feed them —–
Four —
Breathe —–
Control their —–
live on land; can fly; fur; on milk; limbs (arms, flippers, wings); using lungs; body temperature
Some animals are more difficult to classify because they are — or have —–.
unusual; characteristics from more than one vertebrate group
The change of state from —– is melting.
solid to liquid
When a solid begins to melt, its particles —–(movement). The particles move —–(arrangement). They move around, —– each other(separation). Some of the substance is now in the — state.
vibrate faster; out of their fixed positions; sliding over; liquid
Why can gas be compressed?
Because the particles are far apart from one another, so have space to get closer when they are compressed.
In the liquid, the —– changes all the time.
particle arrangement
In both the solid and liquid states, the particles —–.
touch each other (separation of the particles stays the same)
The temperature that a substance melts at is its —–. Every substance has —–. If a substance has a —– its particles are held together weakly.
melting point; its own melting point; low melting point
Scientists use —– to help identify substances.
melting points
The change of state from liquid to solid is —. A substance freezes at, or —, its —–.
freezing; below; melting point
When a liquid freezes, its particles stop —–. Over time, they —–. Eventually, all the particles are —–. They — on the spot. All of the substance is now —.
moving around from place to place; arrange themselves in a pattern;
in fixed positions; vibrate; frozen
