Year 7 Science
How many branches of science are there?
Four
If I am a spider, am I a vertebrate and invertebrate?
Invertebrate
Substances are classified as either a ......... or a ......... ............
mixture or pure
Define forces.
Forces are a push or a pull on an object to change its motion.
How many planets are there is our solar system?
What is the study of biology?
Study of all living organisms
The dichotomous key has branches that split two ways, what are the two first ways?
Vertebrate and Invertebrate
What is the symbol for Oxygen?
O
What is contact forces and give an example:
Forces that occur when two objects touch each other such as when you push someone over (pull a cart, there are a few)
How many planets from the sun is Uranus?
7
What is the difference between quantitative and qualitative data?
A quantity is how many or how much of something there is.
A quality is something that we can directly observe with our senses. Examples include shape, colour, hardness, roughness and sweetness.
There are five kingdoms of life, what are all 5 of them?
Animalia, plantae, fungi, protista, monera (bacteria/archaea).
Is oil and water classed as a solution?
Nup.
What kind of force is a balanced force?
Two forces that are equal in size and opposite in direction. When forces are balanced, an object does not move.
What is the name of the astronomical model in which the Earth is the centre of the universe
The geocentric model
What is the difference between a dependent and independent variable?
Dependent variable - something that is measured in an investigation
Independent variable - something that is changed in an investigation
What are the 5 classes of vertebrates?
Mammal, Amphibian, Fish, Reptile, Bird.
What is a solvent? Give an example please.
any liquid that dissolves another substance/s.
Water!
Friction (add 100 to your total score)
Draw the moon phase, 'Waxing Crescent'
Correct drawing.
Explain the difference between reliability and validity in an experiment
validity: The degree to which an investigation tests the hypothesis it intended to
reliability: The consistency and reproducibility of measurements. It indicates how often an experiment can be repeated under the same conditions and yield similar results.
What are the 7 classifications in the Linnaean classification system?
(Half points if you name at least four correct)
(Double points for correct order)
kingdom, phylum, class, order, family, genus, species (this was hard so times your winning points by 2)
What is the symbol for Gold?
Au
How would you reduce friction? Give two examples.
You would add a lubricant, such as oil and grease (multiply your total score by 1.5)
Name five phases of the moon