Cells
This is the basic unit of life and the building block of all organisms.
What is a cell?
This force pulls objects toward the center of the Earth.
What is gravity?
This process separates a solid from a liquid by using a filter.
What is filtration?
Animals that have a backbone belong to this group.
What are vertebrates?
This is the process of gathering data through your senses or scientific tools.
What is observing?
This scientist proposed the theory of evolution by natural selection.
Who is Charles Darwin?
This organelle is known as the "powerhouse" of the cell because it produces energy.
What is the mitochondrion?
This is the force that opposes motion between two surfaces in contact.
What is friction?
This method uses heat to separate a solvent from a solute.
What is evaporation?
Organisms are classified into groups based on this, their ability to produce fertile offspring.
What is a species?
A proposed explanation or answer to a scientific question that can be tested.
What is a hypothesis?
Known as the "Father of Modern Physics," this scientist developed the theory of relativity.
Who is Albert Einstein?
Plant cells have this rigid structure outside the cell membrane for support and protection.
What is the cell wall?
This force occurs when two objects are pushed or pulled while touching.
What is a contact force?
A mixture of liquids can be separated based on boiling points through this process.
What is distillation?
his scientist developed the binomial naming system for organisms.
Who is Carl Linnaeus?
This type of variable is the one that you measure in an experiment.
What is the dependent variable?
This scientist discovered penicillin, the world’s first antibiotic.
Who is Alexander Fleming?
This green pigment in chloroplasts helps plants perform photosynthesis.
What is chlorophyll?
This force is responsible for the motion of an object moving in a circle.
What is centripetal force?
This method is used to separate magnetic materials from non-magnetic ones.
What is magnetism?
Plants that do not produce flowers, such as ferns, are classified in this group.
What are bryophytes?
Scientists record their results using these.
What are tables?
This scientist discovered radioactivity and won two Nobel Prizes.
Who is Marie Curie?
This type of cell lacks a nucleus and includes bacteria.
What is a prokaryotic cell?
Force has these two things?
What are direction and magnitude?
This technique uses paper to separate pigments in a solution.
What is chromatography?
These are the two parts of a scientific name in binomial nomenclature.
What are genus and species?
This samples has all the controlled variables but not independent change.
What is a control sample?
Known for his laws of motion, he also developed the first reflecting telescope.
Who is Isaac Newton?