AQA GCSE COMBINED SCIENCE TRILOGY
HIGHER TIER PHYSICS PAPER 1H EXAM
CORRECT ANSWERS GRADED A+
⩥ Atoms are the particles that make up everything. Answer: What are
atoms?
⩥ An element is a substance in which all the atoms are the same.
Answer: What is an element?
⩥ Elements are shown in the Periodic table. Answer: Where are
elements shown?
⩥ There are around 118 elements. Answer: How many elements are
there?
⩥ A compound is a substance that contain two or more elements
chemically combined. Answer: What is a compound?
⩥ The properties of compounds are usually different to the elements that
they are made from. Answer: Describe the properties of compounds
,⩥ A mixture is a substance with different elements or compounds not
chemically combined. Answer: What is a mixture?
⩥ An example of a mixture is sand and water as they are not chemically
combined and can be separated by physical means. Answer: Give an
example of a mixture
⩥ A molecule is a substance that has any elements chemically joined.
Answer: What is a molecule?
⩥ A chemical formula tells the elements in a molecule and the number
of atoms of each element. Answer: What does a chemical formula tell
you about a molecule?
⩥ Each element symbol starts with a capital letter, if there is a second
letter it is in lower case. Answer: How is a chemical formula presented?
⩥ . Answer: Give an example of a chemical formula
⩥ State symbols show the physical state of the substance solid (s), liquid
(l), gas (g), or dissolved in water (aq). Answer: What are state symbols?
⩥ -Strong
-Good conductors of heat and electricity
,-High melting and boiling points. Answer: Name three properties of
Metals
⩥ -Weak
-Bad conductors of heat and electricity
-Low melting and boiling points. Answer: Name three properties of
Non-Metals
⩥ Four different ways of separating mixtures are filtration,
crystallisation, distillation or chromatography. Answer: State the four
different ways of separating mixtures
⩥ Pour your mixture onto the filter paper, the liquid simply passes
through the filter paper into the flask. The insoluble solid cannot pass
through and so it stays on the paper. Answer: Describe the process of
filtration
⩥ Use the method of filtration to filter off any excess soluble solid.
Evaporate the mixture then transfer the hot mixture onto a dish. Crystals
are formed when the mixture has cooled. Answer: Describe the process
of crystallisation
⩥ First we evaporate the mixture by heating it, the dissolved solid then
vaporises. These vapours condense in the condenser, the dissolved solid
, then flows into the beaker and liquid stays in the flask. Answer: Describe
the process of simple distillation
⩥ Take a strip of filter paper and draw a line on the bottom of the paper.
Put a small drop of ink on the line, take a jar full of water up to the line
and put the filter paper in. As the water moves up we see different
colours on the paper these are the dyes in the ink. Answer: Describe the
process of chromatography
⩥ Early ideas of the structure of atoms stated that they are tiny spheres
that cannot be divided. Answer: What were the early ideas of the
structure of atoms?
⩥ The plum pudding model is what scientists suggested is the structure
of atoms is after the discovery of the electron. Answer: What is the plum
pudding model?
⩥ The plum pudding model suggested that an atom is a ball of positive
charge with negative electrons in embedded in it. Answer: Describe the
plum pudding model
⩥ Rutherford took a piece of gold foil, he then fired tiny positive alpha
particles at the gold foil. Answer: Describe how Rutherford carried out
the gold foil experiment
HIGHER TIER PHYSICS PAPER 1H EXAM
CORRECT ANSWERS GRADED A+
⩥ Atoms are the particles that make up everything. Answer: What are
atoms?
⩥ An element is a substance in which all the atoms are the same.
Answer: What is an element?
⩥ Elements are shown in the Periodic table. Answer: Where are
elements shown?
⩥ There are around 118 elements. Answer: How many elements are
there?
⩥ A compound is a substance that contain two or more elements
chemically combined. Answer: What is a compound?
⩥ The properties of compounds are usually different to the elements that
they are made from. Answer: Describe the properties of compounds
,⩥ A mixture is a substance with different elements or compounds not
chemically combined. Answer: What is a mixture?
⩥ An example of a mixture is sand and water as they are not chemically
combined and can be separated by physical means. Answer: Give an
example of a mixture
⩥ A molecule is a substance that has any elements chemically joined.
Answer: What is a molecule?
⩥ A chemical formula tells the elements in a molecule and the number
of atoms of each element. Answer: What does a chemical formula tell
you about a molecule?
⩥ Each element symbol starts with a capital letter, if there is a second
letter it is in lower case. Answer: How is a chemical formula presented?
⩥ . Answer: Give an example of a chemical formula
⩥ State symbols show the physical state of the substance solid (s), liquid
(l), gas (g), or dissolved in water (aq). Answer: What are state symbols?
⩥ -Strong
-Good conductors of heat and electricity
,-High melting and boiling points. Answer: Name three properties of
Metals
⩥ -Weak
-Bad conductors of heat and electricity
-Low melting and boiling points. Answer: Name three properties of
Non-Metals
⩥ Four different ways of separating mixtures are filtration,
crystallisation, distillation or chromatography. Answer: State the four
different ways of separating mixtures
⩥ Pour your mixture onto the filter paper, the liquid simply passes
through the filter paper into the flask. The insoluble solid cannot pass
through and so it stays on the paper. Answer: Describe the process of
filtration
⩥ Use the method of filtration to filter off any excess soluble solid.
Evaporate the mixture then transfer the hot mixture onto a dish. Crystals
are formed when the mixture has cooled. Answer: Describe the process
of crystallisation
⩥ First we evaporate the mixture by heating it, the dissolved solid then
vaporises. These vapours condense in the condenser, the dissolved solid
, then flows into the beaker and liquid stays in the flask. Answer: Describe
the process of simple distillation
⩥ Take a strip of filter paper and draw a line on the bottom of the paper.
Put a small drop of ink on the line, take a jar full of water up to the line
and put the filter paper in. As the water moves up we see different
colours on the paper these are the dyes in the ink. Answer: Describe the
process of chromatography
⩥ Early ideas of the structure of atoms stated that they are tiny spheres
that cannot be divided. Answer: What were the early ideas of the
structure of atoms?
⩥ The plum pudding model is what scientists suggested is the structure
of atoms is after the discovery of the electron. Answer: What is the plum
pudding model?
⩥ The plum pudding model suggested that an atom is a ball of positive
charge with negative electrons in embedded in it. Answer: Describe the
plum pudding model
⩥ Rutherford took a piece of gold foil, he then fired tiny positive alpha
particles at the gold foil. Answer: Describe how Rutherford carried out
the gold foil experiment
