Antoni van Leeuwenhoek was a master at making lenses from these tiny things.
What are "tiny beads/balls of glass"
100
These flowering plants have one seed leaf.
What are "monocots"?
100
This is the dust from a flowering plant, and it is carried by the wind, animals, and insects to other flowers.
What is pollen?
100
These are the additive primary colors of light.
What are "red, green, and blue"?
100
This is the ability of an object to resist changes in motion.
What is inertia?
200
With his microscope, van Leeuwenhoek discovered tiny creatures he called "animalcules", but scientists today call them this.
What is bacteria or protozoa?
200
These flowering plants have two seed leaves.
What are "dicots"?
200
These are the male reproductive parts of the flower that produce and release pollen.
What are stamen?
200
Sir Isaac Newton discovered the Law of Universal _________.
What is "Gravitation"?
200
This is what is being tested in an experiment, or in other words, this is what is being changed on purpose.
What is "the independent variable"?
300
This is another name for grouping things together that are alike.
What is "classification" (or taxonomy)?
300
Nehemiah Grew discovered that the purpose of flowers on plants is to do this.
What is "to reproduce"?
300
This object refracts white light and separates it into all of its colors.
What is a prism?
300
Newton's First Law is also known as this.
What is "the Inertia Law"?
300
This is what happens when you change the independent variable, or in other words, this is what you are measuring in an experiment.
What is "the dependent variable"?
400
If two living things can reproduce, and their offspring can also reproduce, then they both belong to the same ______.
What is "species"?
400
This is the female reproductive part of the plant, designed to catch pollen that other flowers release.
What is the carpel?
400
When the additive primary colors of red, blue, and green light are combined, they form this color.
What is "white"?
400
If two objects remain the same distance away from each other but the mass of one object is increased, how does that change the gravitational force between them?
What is "the gravitational force between them increases"?
400
The Voyager spacecraft is still flying out of the solar system into outer space, even though it has been out of fuel for a long time, because of this.
What is "inertia"?
500
In his book, Historia Plantarum, John Ray said that this should be the smallest group in the classification system.
What is "species"?
500
John Ray argued that plants should not be classified by the appearance of their flowers, but instead should be classified by this.
What is "whether they have one seed leaf or two" (or whether or not they produce flowers)?
500
When we see an object that is red, it appears red because of this.
What is "the object only reflects red light and absorbs all the other colors"?
500
If two objects have the same mass, but then are moved farther apart, how does that change the gravitational force between them?
What is "the gravitational force will decrease"?
500
This is Newton's First Law.
What is "An object at rest will stay at rest unless acted on by an outside force, and an object in motion will stay in motion unless acted on by an outside force."