Ecosystems
Double points: What is a food chain?
A food chain shows how energy passes from one living thing to another through consumption.
What is a wave?
A wave transfers energy from one place to another.
Name 3 structures found in an animal cell.
Nucleus, Cell membrane, Cytoplasm, Ribosomes, Mitochondria
Where are metals found on the periodic table?
On the left hand side
What is the longest river in the world?
The river Nile
What is a producer? Give an example
A producer is an organism that makes its own food.
Plants use sunlight to make their own food by photosynthesis
What type of wave is sound? & How does it travel?
Sound is a longitudinal wave.
It vibrates in a parallel direction to the direction of energy transfer through solids, liquids, & gases
Name the cell structures found in a plant cell only.
Cell wall, chloroplast, vacuole.
Double points: What is oxidation? Give an example
Reacting Oxygen with an element.
Which scientist developed the theory of evolution by natural selection?
Charles Darwin
What is pollination?
Pollination is when pollen is moved from one flower to another so plants can reproduce.
Double points: What is the law of reflection?
The angle of incidence = the angle of reflection
Cell that has one specific job
What is neutralisation? Give the general equation
Acid + Alkali --> Water + Salt
Adverb
Name 3 things farmers could use to protect their crops.
Insecticide, Pesticide, Herbicide
Cone cells
Double points: What are antagonistic muscle pairs? Give an example
What is the reactivity series? Name the top 3 metals in the reactivity series? (HINT - They are all in group 1)
A list of metals arranged in order of their reactivity.
Potassium, Sodium, Lithium
In which year did world war 2 begin?
A - 1939
B - 1940
C - 1941
A - 1939
Describe the process cross-pollination and how it forms a fruit or seed.
Pollen is taken from one plant to another (by wind or insect).
Pollen lands on stigma.
Travels down style and fertilises the ovule to make a fruit or seed.
Describe how different lenses can help people see.
Short-sighted people use concave lenses to refract the waves onto the retina.
Far-sighted people use convex lenses to refract the waves onto the retina.
Give the 4 roles of the skeleton.
Give an example of a ball & socket connection in the skeleton.
Protection
Support
Movement
Blood reproduction
Hips / Shoulders
Describe an experiment you can do to test the reactivity of 3 different metals?
(Equipment: Acid, 3 metals, thermometer, timer, plastic cup, lid)
allow correct description
Double points: Which country has the most time zones, including overseas territories?
France