CH 1
This nutrient helps to keep digestive system healthy and helps prevent constipation.
What is fibre?
This subatomic particle has no charge.
What is a neutron?
These are two types of mixtures.
What are homogeneous and heterogeneous mixtures?
Total distance / Total time
What is average speed?
A moment to moment to change in the atmosphere
What is weather?
Inorganic nutrients that help make bones strong and make haemoglobin.
What are calcium and iron?
The electrons revolve around the nucleus in pathways called __________
What are orbits?
This is the definition of a solution.
A transparent mixture produced as a result of a solute dissolving a solvent.
The graph
What does the distance time graph for increasing speed look like?
observation of weather over a long period of time to predict patterns
Climate
A regular intake of food that provides all different kinds of nutrients, and the right amount of energy
What is a balanced diet?
This model by JJ Thomson is called ______________ _________________ _____________ because it visualised an atom with negatively charged electrons stuck inside a ______________ ______________ proton soup.
plum pudding model; positively charged
This is the separation technique used to separate an insoluble solid from a liquid.
What is filtration?
Image - Calculate the resultant force
4N
Seven different zones in which the planet is divided based on climate
Equatorial, Sub equatorial, temperate, tropical, sub-tropical, sub-polar, polar
Tobacco smoke contains these 3 components
What is nicotine, carbon monoxide, and tar?
This model showed a small and heavy positively charged nucleus and electrons moving around the nucleus, but no explanation for their continued movement without falling in
What was the atomic model by Ernest Rutherford?
The end line for how far the solvent travels
____________ forces can cause movement in a stationary object, while ____________________ ______________ cannot.
Unbalanced; balanced forces
Composition of Earth's early atmosphere
Carbondioxide, ammonia/ nitrogen, water vapour
These two healthy habits help maintain strong muscles and a strong heart.
What is strength training / lifting weights and cardiovascular exercises / running, jumping?
This experiment involved bombarding a _________ _________ ________ with _______ _________ and checking if the particles ______________ __________ or were ________________
thin gold foil, alpha particles, passed through, deflected
Approximately 70 degree celsius.
The _________ effect of a force depends on both the _______ of the force and the ____________ from the ______________ .
Turning, magnitude / size, distance, fulcrum
Describe the Climate cycles of earth
Warm and ice ages; ice ages - glacials and interglacials