Show:
Energy, Forces, and Motion
Earth and Space
World of Plants
World of Animals
Light, Sound, and Electricity
100
Energy from Sun.
What is solar energy?
100
The type of galaxy that Milky Way is.
What is a spiral galaxy?
100
Two structures which are found only in plant cells.
What are chloroplasts and cell walls?
100
Stores and distributes the substances made inside an animal cell.
What are Golgi Bodies?
100
A substance which waves travel through.
What is a medium?
200
The area where the whole object's weight seems to act in gravity.
What is the center of gravity?
200
Two stars which orbit around each other.
What are binary stars?
200
The outer area of rings in tree bark.
What is sapwood?
200
Body cavity filled with blood and forms part of the animal's blood system.
What is hemocoel?
200
When two or more waves meet.
What is interference?
300
The force you must overcome to move an object.
What is load?
300
The two moons of Mars.
What are Phobos and Deimos?
300
A leaf at the bottom of a flower stalk which often protects the bud.
What is a bract?
300
Makes hair and nails.
What is keratin?
300
Sound measurement.
What are decibels?
400
Measurement of work.
What are joules?
400
The most common type of winds in an area.
What are prevailing winds?
400
When the plant is strong and standing firm.
What is turgor?
400
Creatures with six legs.
What is a hexapod?
400
Causes parallel rays of light passing through it to come together at a focus.
What are converging lens?
500
A type of jet engine which is not as fast as turbojets but are quieter and use less fuel.
What is turbofan engines?
500
Helpful substance given out by rotting wastes.
What is biogas?
500
The hormone in plants which causes photoperiodism or sensitivity to light and dark or day and night.
What is florigen?
500
Young salmon.
What are fry?
500
Converts solar energy to electricity.
What is a solar cell?