Light and Dark 🔦
what is a light sorce?
it makes its own light
this type of soil is a mix of sand and clay and is the best for growing plants
loam
what is a force?
a push or a pull
This force happens when two surfaces rub together and try to slow things down.
friction
This word means to "pull closer." (magnets)
attract
what is a shadow?
a dark patch made when an opaque object blocks light
These are the remains of animals or plants from long ago, usually found in sedimentary rock.
fossils
Force is measured in this unit
Newtons
These are the two ends of a magnet where the force is the strongest
The poles (North and South)
This word describes an object that does not let any light pass through it
opaque
Mirrors and the Moon do not make light; instead, they ....
they reflect it
This part of the soil is made from dead plants and animal materials
humus
name 1 non-contact force
magnetism
What do two magnets do if you put the same poles (like N and N) together?
repel
This is a force that pulls everything down toward the Earth.
gravity
This part of your eye gets bigger in dim light to help you see better.
the pupil
This is the thin, outer layer of the Earth where we find all our rocks
the crust
what is direction?
side / way
Push is this type of force because it needs to touch an object to move it
contact force
metals like gold and silver are
non-magnetic
If a torch moves closer to an object, what happens to the size of the shadow?
it gets bigger
This type of rock forms when hot lava cools down.
igneous
This is the tool scientists use to measure how strong a force is
forcemeter
This is a substance, like oil, that reduces friction to help things move smoothly.
lubricant
When something keeps repeating, we call it a
pattern