Acids and Alkalis
This scale is used to measure how acidic or alkaline a substance is.
What is the pH scale?
This is the energy source that provides electrical energy in a simple circuit.
What is a cell (or battery)?
This chart organises all the known chemical elements.
What is the Periodic Table?
This is the name given to liquids and gases because they can flow.
What are fluids?
This is the smallest part of an element that still has the properties of that element.
What is an atom?
These substances have a pH greater than 7.
What are alkalis?
This material allows electric current to flow through it easily.
What is a conductor?
Elements in the same vertical column of the Periodic Table are called this.
What is a group?
This force acts on an object in a fluid and pushes upwards against its weight.
What is upthrust (or buoyancy)?
These are substances made from only one type of atom.
What are elements?
This process happens when an acid reacts with an alkali to produce a salt and water.
What is neutralisation?
This instrument is connected in series to measure the current flowing through a circuit.
What is an ammeter?
These elements are found on the left-hand side of the Periodic Table and are usually good conductors of heat and electricity.
What are metals?
This property describes how easily a fluid can flow, with honey having a higher value than water.
What is viscosity?
This type of particle is made when two or more atoms join together chemically.
What is a molecule?
This colour is produced when universal indicator is added to a neutral solution.
What is green?
In a series circuit, if one bulb is removed or breaks, this happens to the other bulbs.
Why do all the bulbs go out in a series circuit?
Group 1 elements are given this collective name because they react vigorously with water.
What are the alkali metals?
This happens when a fluid pushes against the sides of a container or an object placed in it.
What is pressure?
This diagram shows the atoms and bonds in a substance, using symbols and lines.
What is a chemical formula?
When hydrochloric acid reacts with sodium hydroxide, this salt is produced
What is sodium chloride?
In a parallel circuit, adding another branch does not change this quantity across each component.
What is the voltage (potential difference)?
This group of elements is so unreactive that it is often used to fill balloons and protect filament bulbs.
What are the noble gases (Group 0)?
This explains why a large ship made from metal can float, even though the metal itself is denser than water.
What is upthrust (or buoyancy)?
This type of substance contains two or more different elements chemically joined together.
What is a compound?