Science 1093 Self Test

plants

In ___________, most cycles, or patterns, are simple responses to the amount of daylight.

south

In the Southern Hemisphere, the constellation Crux, or the Southern Cross, is used to find the direction _____________.

energy

Many people consider ____________ to be one of our basic needs for survival and productivity in today's world.

event

Many plants and animals follow regular cycles, or patterns, that are controlled either by a regular ___________ in their surroundings or by internal biological clocks.

third

Neap tides occur twice a month during the moon's first and _______________ quarters.

gravitational

One of the factors that causes the ocean cycles of tides is the ____________ pull of the sun and moon.

rest

People depend upon a day-night cycle for work and ___________; most plants depend upon a day-night cycle for growth.

tilt

Seasonal cycles, which are opposite in the Northern and Southern Hemispheres, are caused by the ____________ of Earth on its axis in its 12-month, or 365 day, cycle.

new

Spring tides occur during the ___________ and full moons.

vernal

The _____________ equinox marks the beginning of spring.

hydrocarbon

The _____________ fuels--coal, petroleum, and natural gas--are fossil fuels that contain chemical compounds made of hydrogen and carbon.

lifespan

The _____________ of a plant is controlled by its internal biological clock.

longest

The ______________ day of the year is the summer solstice.

shortest

The ______________ day of the year is the winter solstice.

autumnal

The ______________ equinox marks the beginning of fall.

spring

The highest tides of the month are called _______________ tides.

neap

The lowest tides of the month are called ____________ tides.

synodic

The most common lunar month is the ______________ month, which is the time between one new moon and the next new moon.

circadian

The pattern of daily rhythm that is controlled by our internal biological clock is called ______________ rhythm.

Polaris

The star at the end of the Little Dipper's handle is ______________, or the North Star.

fail

The tides, the days, the seasons, and the years were established by God, and what God has established will never ________________.

rhythm

When the body's sleep ______________ has been upset by passing through several time zones, a person may experience an unusual weariness called jet lag.

geothermal

____________ energy is a renewable natural energy resource that is used to convert hot underground water or steam into electricity.

leap

____________ years are used to correct the calendar.

solar

_____________ energy is a dependable and safe alternative to oil, natural gas, or coal in places with little cloud cover.

solstice

_____________ refers to the most northern or southern line reached by the sun's direct rays.

nuclear

______________ power is an alternative to coal, oil, or natural gas but requires careful disposal of the radioactive wastes it produces.

wind

______________, caused by the uneven heating of the atmosphere by the sun, can generate clean, nonpolluting electricity.

tidal

________________ power stations all rely on the streaming power of high and low tides.

water

A person cannot survive many days without ______________.

air

A person cannot survive more than a few minutes without ______________ - the most critical resource for sustaining life.

food

A person might survive a few weeks without _____________.

star

A solar day is measured with the sun, but a sidereal day is measured with a ____________ other than our sun.

north

All stars in the northern sky appear to move in a circle around the North Star, which does not move and is used to find the direction ______________.

centrifugal

Another factor that causes the ocean cycles of tides is ________________ force.

seasons

Certain star patterns and the times of sunrise and sunset mark the ___________, and that is how early farmers knew when to plant their crops.

zones

Different climatic conditions exist in bands, or ___________, around Earth.

perihelion

During the first week of January, Earth comes nearest the sun at a point in its orbit called the _____________.

aphelion

During the first week of July, Earth reaches its farthest point from the sun during its orbit at a point called the ________________.

low

Earth's rotation causes each coastline to have two _________ tides approximately every 24 hours.

high

Earth's rotation causes each coastline to have two ______________ tides approximately every 24 hours.

seasons

Equinoxes and solstices mark the beginnings of ______________.

created

God ____________ and named the stars, and it is He Who keeps the stars in the heavens.

brain

God has placed within the _____________ of humans and some animals certain cells that act as a clock to control certain responses.

resource

Good soil for growing food is a natural ______________.

day

A ___________ is the time it takes Earth to make one rotation on its axis.

year

A calendar _____________ is the time it takes Earth to travel around the sun.

equinox

A day of equal light and darkness is called an _______________.