Earth
Solar System
Plants
Energy and Electricity
Sound and Light
100
True or False. The Earth's surface is always changing.
What is true?
100
Rocky fragments left over from the formation of the solar system 4.5 billion years ago.
What are asteroids?
100
The way in which seeds are spread.
What is insects, wind, water, or animals?
100
Objects rubbing together causing heat.
What is friction?
100
Light travels in a straight called ....?
Lightwaves
200
Most of these are located where tectonic plates meet.
What are earthquakes or volcanoes?
200
This is the third planet from the Sun.
What is Earth?
200
Two things plants must have to survive.
What is water and sunlight?
200
The flow of electrons.
What is electricity?
200
Objects that allow light to pass through them.
What is transparent?
300
This is what weathering is caused by.
What is wind, water, ice or humans?
300
The number of planets in our Galaxy?
What is 8? Pluto is now considered a dwarf planet.
300
Where fertilization takes place in most plants.
What is the flower?
300
This is needed to do work or cause change.
What is energy?
300
True or False. Vibrations are the cause of sounds.
What is true?
400
This type of rock has sediments cemented together.
What is sedimentary rock?
400
The name of the Galaxy we live in.
What is the Milky Way?
400
The green color in plants.
What is chlorophyll?
400
Any material through which an electric current can easily flow.
What is a conductor?
400
Does sound travel faster through solids or gasses?
What are Gasses?
500
The remains of plants and animals that have been preserved in rock.
What are fossils?
500
The closest star to Earth.
What is the Sun?
500
A plant that reproduces with spores rather than seeds.
What is moss?
500
The pathway taken by an electric current.
What is electric circuit?
500
The highness or lowness of a sound.
What is pitch?
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