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Humans have a heart.
|
Which organ pumps blood?
|
Heart
|
The Earth has forests.
|
What areas contain many trees?
|
Forests
|
A phone has a screen.
|
What does a phone have to display images?
|
A screen
|
The color of clouds can be gray.
|
What color can clouds be?
|
Gray
|
Birds build nests.
|
What do birds build?
|
Nests
|
The Earth has valleys.
|
What low landforms exist on Earth?
|
Valleys
|
A chair has legs.
|
What supports a chair?
|
Legs
|
The Sun is a source of light.
|
What is a natural light source?
|
The Sun
|
Ice is cold.
|
Is ice hot or cold?
|
Cold
|
A door can lock.
|
What can a door do for security?
|
Lock
|
The Earth has rain and snow.
|
What types of precipitation exist?
|
Rain and snow
|
The Moon reflects sunlight.
|
Why does the Moon look bright?
|
Reflected sunlight
|
A backpack has straps.
|
What does a backpack have to wear it?
|
Straps
|
The color of wood is brown.
|
What color is wood?
|
Brown
|
A road connects places.
|
What does a road do?
|
Connects places
|
The Sun is very hot.
|
Is the Sun very hot?
|
Yes
|
Humans have hair.
|
What grows on the human head?
|
Hair
|
The Earth has islands.
|
What land is surrounded by water?
|
Islands
|
A book can be read.
|
What can you do with a book?
|
Read it
|
The Moon has phases like full and new.
|
What changes in the Moon over time?
|
Its phase
|
Water flows downhill.
|
Which direction does water flow?
|
Downhill
|
The Earth spins on its axis.
|
What does Earth spin on?
|
Its axis
|
A computer has a keyboard.
|
What input device does a computer have?
|
Keyboard
|
The color of bananas is yellow.
|
What color are bananas?
|
Yellow
|
A house has a roof.
|
What covers the top of a house?
|
Roof
|
The Sun helps plants grow.
|
What helps plants grow?
|
The Sun
|
Humans have two ears.
|
How many ears do humans have?
|
Two
|
The Earth has plains.
|
What flat landforms exist on Earth?
|
Plains
|
A pen can run out of ink.
|
What can a pen run out of?
|
Ink
|
The Moon is rocky.
|
What is the Moon mostly made of?
|
Rock
|
The Sun rises in the morning.
|
When does the Sun rise?
|
Morning
|
A clock can hang on a wall.
|
Where can a clock hang?
|
On a wall
|
The Earth has volcanoes.
|
What landforms erupt lava?
|
Volcanoes
|
The color of apples can be green.
|
What color can apples be?
|
Green
|
A table is used to place objects.
|
What is a table used for?
|
Placing objects
|
The Moon causes tides.
|
What causes ocean tides?
|
The Moon
|
Humans have skin.
|
What covers the human body?
|
Skin
|
The Sun is round.
|
What shape is the Sun?
|
Round
|
A bag can carry items.
|
What is a bag used for?
|
Carrying items
|
The Earth has rivers.
|
What natural flowing water exists on Earth?
|
Rivers
|
The Earth has a diameter of about 12,700 kilometers.
|
What is the approximate diameter of Earth?
|
About 12,700 km
|
The Sun is older than the Earth.
|
Which is older, the Sun or Earth?
|
The Sun
|
Humans are warm-blooded animals.
|
Are humans warm-blooded or cold-blooded?
|
Warm-blooded
|
The Earth has a northern and southern hemisphere.
|
How many hemispheres does Earth have?
|
Two
|
Water boils at 100 degrees Celsius.
|
At what temperature does water boil?
|
100°C
|
The Moon takes about a month to orbit Earth.
|
How long does the Moon take to orbit Earth?
|
About one month
|
The Sun emits light in all directions.
|
How does the Sun emit light?
|
In all directions
|
Humans have fingernails.
|
What grows at the ends of fingers?
|
Fingernails
|
The Earth has polar ice caps.
|
Where is most of Earth's ice located?
|
At the poles
|
A thermometer measures temperature.
|
What does a thermometer measure?
|
Temperature
|
The Sun is much hotter than Earth.
|
Which is hotter, the Sun or Earth?
|
The Sun
|
The Earth has a crust, mantle, and core.
|
What is the outer layer of Earth called?
|
The crust
|
Humans have eyebrows.
|
What is above the eyes?
|
Eyebrows
|
The Moon always shows the same face to Earth.
|
Does the Moon show different sides to Earth?
|
No
|
The Earth has fresh water and salt water.
|
What type of water is found in oceans?
|
Salt water
|
The Sun will eventually run out of fuel.
|
Will the Sun last forever?
|
No
|
Humans blink their eyes.
|
What do humans do to keep eyes moist?
|
Blink
|
The Earth has a day and night cycle.
|
What causes day and night?
|
Earth’s rotation
|
The Moon has weaker gravity than Earth.
|
Where is gravity weaker, Earth or Moon?
|
Moon
|
A scale is used to measure weight.
|
What does a scale measure?
|
Weight
|
The Sun is about 150 million kilometers from Earth.
|
How far is the Sun from Earth?
|
About 150 million km
|
Humans have a spine.
|
What runs down the human back?
|
Spine
|
The Earth tilts on its axis.
|
What causes seasons on Earth?
|
Earth’s tilt
|
The Moon has no liquid water on its surface.
|
Is there liquid water on the Moon’s surface?
|
No
|
The Sun creates shadows.
|
What causes shadows during the day?
|
The Sun
|
Humans have two shoulders.
|
How many shoulders do humans have?
|
Two
|
The Earth has tectonic plates.
|
What moves to cause earthquakes?
|
Tectonic plates
|
The Moon is visible from Earth.
|
Can people see the Moon from Earth?
|
Yes
|
A calendar shows dates.
|
What does a calendar show?
|
Dates
|
The Sun produces solar radiation.
|
What kind of energy comes from the Sun?
|
Solar energy
|
Humans have eyelids.
|
What covers the eyes when sleeping?
|
Eyelids
|
The Earth has more water than land.
|
Does Earth have more land or water?
|
Water
|
The Moon has a rocky surface.
|
What type of surface does the Moon have?
|
Rocky
|
The Sun’s light takes time to reach Earth.
|
Does sunlight reach Earth instantly?
|
No
|
Humans have ribs.
|
What protects the heart and lungs?
|
Ribs
|
The Earth has an equator.
|
What imaginary line divides Earth in half?
|
The equator
|
The Moon has mountains.
|
Does the Moon have mountains?
|
Yes
|
A compass points north.
|
What direction does a compass point?
|
North
|
The Sun is spherical.
|
What shape is the Sun?
|
Sphere
|
Humans sweat to cool down.
|
Why do humans sweat?
|
To cool down
|
The Earth has changing weather.
|
Does Earth’s weather stay the same?
|
No
|
The Moon reflects sunlight to Earth.
|
Why can we see the Moon at night?
|
Reflected sunlight
|
The Sun causes evaporation.
|
What causes water to evaporate?
|
The Sun
|
Humans have knees.
|
What joint bends the leg?
|
Knee
|
The Earth has lakes.
|
What inland bodies of water exist on Earth?
|
Lakes
|
The Moon has a near side and far side.
|
How many sides of the Moon are there?
|
Two
|
The Sun is the main energy source for Earth.
|
What is Earth’s main energy source?
|
The Sun
|
Humans have fingernails and toenails.
|
What grows on toes?
|
Toenails
|
The Earth has natural resources.
|
What useful materials come from Earth?
|
Natural resources
|
The Moon’s gravity affects Earth.
|
What does the Moon affect on Earth?
|
Tides
|
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