for an astronomer, the best instrument for viewing a distant star is
What is a telescope
100
______ is a water planet
What is Earth
100
a type of energy that you can see
What is light
100
a tool that makes work easier
What is a simple machine
200
cause dead plants and animals to decay
What is a decomposer
200
the cycle of the moon's phases can be seen from Earth because
What is the moon revolving around Earth
200
water exists in three states on Earth
What is solid, liquid, gas
200
light travels in a ____________ line
What is a straight line
200
a push or a pull
What is a force
300
consumers and decomposers couldn't live without...
What is a producer
300
on Monday night, you see a bright object in the sky. On Thursday night, you notice the same object in a slightly different location. This tells you that the object is...
What is a star
300
What is water in the gaseous state called?
What is water vapor
300
sound moves fastest through ____________.
What is a solid
300
a force that pulls things toward each other
What is gravity
400
all of the living things on Earth are connected. _______ is a model that shows those connections.
What is a food chain
400
the moon's four ______________ are new moon, first quarter, full moon, and third quarter
What is the main phases
400
the cycling of water between Earth's waters, atmosphere, and land
What is the water cycle
400
a lens that is thicker in the middle than at the edges
What is a convex lens
400
knife, axe, fork, nail, doorstop
What is a wedge
500
a body part or behavior that helps a living thing survive.
What is an adaptation
500
what is the source of the moon's light?
What is the sun
500
meteorologists, or weather scientists, use many different __________ to gather data about the weather
What is instruments
500
light that moves through a cnvex lens is bent __________.
What is inward
500
swivel chair, base of a jar lid, lightbulb, wood screw