Digestion and Nutrition
Where in the body does digestion start?
Mouth
Which organism always starts off a food chain/web?
Plant / producer
What is the name of the outer layer of the Earth?
Crust
Which three particles make up an atom?
electrons, neutrons and protons
What is the unit for mass?
g or kg
What is the unit for energy?
Joules
What is the organism at the top of the food chain?
Apex predator
Which layer of the Earth is hottest?
Inner core
Where do you find the electrons?
shells
What happens when waves hit a surface?
reflected
absorbed
transmitted
refracted
Which organ follows the stomach?
Small intestine
What is transferred between organisms in a food chain? (What do the arrows represent?)
Energy is transferred
Which types of rock is formed from cooling down magma or lava?
igneous rock
What is the charge of a proton?
positive (+1)
Which type of wave is a light wave?
Transverse wave
Name an adaptation of the small intestines.
large surface area, good blood supply, thin membranes
What is the name of the square used to estimate the population size?
quadrat
In which type of rock do we most likely find fossils?
Sedimentary rock
What is the name for group 1 on the periodic table?
Alkali metals
What do waves transfer?
Energy
Which enzyme breaks down proteins?
Protease
Which scientist proposed the idea of 'natural selection'?
Charles Darwin
Name a greenhouse gas.
Carbon dioxide
Methane
Water vapour
What is meant by 'conservation of mass'?
Mass of reactants = mass of products
Mass stays the same in a chemical reaction.
What is the unit for weight?
Newtons (N)