حل أوراق عمل مراجعة بالإنجليزي في العلوم المتكاملة للصف السادس - الفصل الثالث (2)

Grade 6 Chapter 10 Test Questions

Which season is illustrated below?

fall in the northern hemisphere; spring in the southern hemisphere

summer in the northern hemisphere winter in the southern hemisphere

spring in the northern hemisphere; fall in the southern hemisphere

winter in the northern hemisphere; summer in the southern hemisphere

When is a solar eclipse visible?

only when the moon is waning

only when the moon is waxing

only when the moon is full d) only when the moon is new

Where is the solar system located? a) near a spiral arm of the Milky Way

outside the Milky Way

in the center of the Milky Way

in the halo of the Milky Way

Which statement about the moon is true?

The Moon does not rotate.

The Moon orbits the Sun.

The Moon has one side that never faces the Sun. d) The Moon has one side that never faces the Earth.

Which is the property of the outer planets?

few moons b) ring systems

rocky surfaces، short orbits

What objects in the solar system are larger than Earth?

Neptune, Pluto and Uranus

Mars, Mercury and Venus

The outer planets and the Sun

The inner planets and the Sun

Which star below is the coolest?

A b) B

Which solar system objects have orbits that take them furthest from the sun?

asteroids، meteoroids، planet d) comet

Which planet is most like Earth in size and makeup?

Mars، Mercury c) Venus، d) Saturn

Which statement about tides is true?

High tides occur twice each day in most coastal areas.

Low tides and high tides never vary in height. c) Tides can be predicted.

• d) Weather has no effect on tides.

What time of the year is the northern hemisphere tilted closest to the sun? a) in January, during winter

in July, during summer

in April, during spring

in October, during Fall

which is the main component of stars? a) hydrogen

dust، nitrogen، rock

Use the figure below to answer question 13.

The figure shows a model for spring tides, which are characterised by high tides that are higher and low tides that are lower than usual. What numbers show the positions of the moon that would cause spring tides?

1 and 2

1 and 3 c) 4 and 2

• d) 4 and 3

Pluto is an example of what kind of object?

comet، asteroid

meteoroid d) dwarf planet

How does the Sun compare to other stars in the universe?

it is further away than most other stars

it is hotter than most other stars

it is more massive than most other stars

it is whiter than most other stars

Use the figure below to answer the question. What event occurs when Earth, the Moon and the Sun are in the positions shown?

lunar eclipse، solar eclipse، neap tide، new moon

Galaxies are classified by shape. What shape is the galaxy that includes the Sun, Earth and rest of the solar system?

elliptical، regular، irregular d) spiral

Which describes the organization of the universe from the smallest to the largest unit?

cluster, supercluster, galaxy, star

star, galaxy, cluster, supercluster

galaxy, star, supercluster, cluster d) star, cluster, supercluster, galaxy

Use the figure below to answer the question. Which arrow shows the motion of Earth if there were no gravity between Earth and the Sun?

Which objects in the Solar system develop long tails during part of their orbits? a) comets

moons

Which does Earth’s rotation affect?

change of seasons

Earth-Sun distance c) hours of daylight

• d) length of month

Between which planets is the asteroid belt located?

Earth and Mars b) Mars and Jupiter

Saturn And Uranus، Uranus and Neptune

What percentage of stars are larger and more massive than the Sun? a) 10 percent

30 percent، 50 percent، 90 percent، Section B

Classify the galaxies below

SpiralEllipticalIrregular

Answer the questions based on the picture below.

Are these inner or outer planets?Inner

Put the planets in the correct order in relation to the Sun. SUNMercuryVenusEarthMars

Which planet is most like Earth in size? Venus

Which is the hottest star?A

Which is the coolest star?_B _

Which colour is the Sun?D

This picture is about the moon around the Earth

Which numbers represent Neap tides?1and3 _

Which numbers represent Spring tides?2and __4

What moon phase does number 2 represent? _New moon

What moon phase does number 4 represent? _Full moon

What type of eclipse is shown on the picture above? Lunar eclipse

What phase must the moon be in? Full Moon

What type of eclipse is shown on the picture above? Solar eclipse

What phase must the moon be in? New moon

This picture is about the Earth around the Sun

_1and3

Which 2 numbers represent solstice?

__2_ and، 4__

1. Classify the galaxies below

Grade 6 Chapter 11 Test Questions

Which energy source produces radioactive waste?

biomass، geothermal

hydroelectric power d) nuclear power

The table below shows the energy sources used to produce electricity in the United States. What can you infer from the table?

About 19.4 percent of U.S electricity comes from renewable sources

Hydroelectric power is more widely used for electricity than nuclear power c) More than 90 percent of U.S electricity comes from non-renewable sources

• d) Oil is more widely used for electricity than hydroelectric power

Which factor would best determine whether a home is suitable for solar energy?

difference in tidal heights

strength of daily winds

nearness to tectonically active areas d) number of sunny days per year

Which activity does NOT reduce the use of fossil fuels?

riding a bicycle to school

unplugging DVD players

walking to the store

watering plants less often

Which is the most used renewable energy resource in the United States?

hydroelectric، natural gas، nuclear energy

What percentage of the energy used in the United States comes from burning fossil fuels?

40 percent

45 percent c) 85 percent

• d) 93 percent

Which practice emphasizes the use of renewable energy resources?

buying battery-operated electronics b) installing solar panels on buildings

replacing sprinklers with watering cans

teaching others about vampire energy

Which is non-renewable land resources?

crops، minerals، streams، trees

Which alternative energy resource is used to make electricity in the figure?

solar energy، tidal power، geothermal energy، hydroelectric power

Which practice is a wise use of land resources? a) composting

conserving water، deforestation، strip mining

Which is a source of biomass energy?

sunlight، uranium، wind d) wood

Nuclear energy: is energy released from atomic reactions uses: small amount of uranium to make lots of energy produces: radioactive waste can harm organisms

Oil spills can harm animals living in water

how different fossil fuels

formed and are mined

Fossil fuels: are formed from dead plants and animals:

Types of fossil fuels: Coal OilNatural gas

Renewable energy: are resources that can be replaced in a short amount of time (will not finish)

Nonrenewable energy: are resources used faster than they can be replaced (will finish)

wood and food scraps

Grade 6 Chapter 12 Test Questions

Which is a population

all the animals in a zoo

all the living things in a forest c) all the cats in a park

• d) all the plants in a meadow