Biology
It is the basic structural unit of all living organisms.
What is a cell?
It is the scientific word for burning which is the reaction of a substance with oxygen.
What is combustion?
It is a push or a pull measured in Newton (N).
What is the definition of a force?
It is an object used to measure the temperature.
What is a thermometer?
It is a mixture made when a solute dissolves in a solvent.
What is a solution?
It includes the heart, the blood vessels and the blood and is responsible for supplying the body in oxygen and nutrients.
What is the circulatory system?
It is a process in which one or more substances is converted into one or more new substances, and cannot easily be reversed.
What is a chemical reaction?
When the moon passes directly behind Earth.
What is a Lunar eclipse?
It is the part of the microscope on which you place the slide.
What is the stage of microscope?
It is a unit used to measure a volume and it corresponds to ml.
What is cm3?
6 CO₂ + 6 H₂O -------------> C₆H₁₂O₆ + 6 O₂
What is the balanced chemical equation for photosynthesis?
It contains a nucleus (made of neutrons and protons) surrounded by a cloud of electrons.
What is the structure of an atom?
It is the ability to do work.
What the definition of energy?
It is a piece of lab equipment commonly used to hold other pieces of equipment and glassware.
What is a laboratory stand (or clamp/retort stand)?
Because we use them to collect and present the data from an experiment.
why do we draw tables and graphs in science?
glucose ----> ethanol + carbon dioxide
What is the word equation for yeast fermentation?
They are the smallest objects with a mass and a volume.
What are particles?
You must divide the weight by 9.8.
How to calculate the mass of an object on Earth?
It is a type of laboratory glassware which features a flat bottom, a conical body, and a cylindrical neck.
What is an Erlenmeyer flask?
You should should multiply 0.069mm by 1000.
How to convert 0.069mm into μm?
They are all unicellular and were first discovered in hydro-thermal vents and terrestrial hot springs. We consider that they define the limits of life on Earth.
What are Archaea?
Its atomic number is 1.
What is the atomic number of the hydrogen?
It decreases and is converted in another type of energy resulting from the movement of the object.
What happens to the potential energy of a falling object?
It is used to realize microorganisms' cultures.
What is a Petri dish used for?
An example of substance which may have this symbol would be a glass bottle containing HCl.
Give an example of a substance which may have the corrosive hazard symbol.