Lab safety
Chemistry
Cells
Forces
Earths structure
100
What safety procedure is missing from this classroom?
Safety goggles!
100
Metals are found where on the periodic table?
The left and centre.
100
What is the function of the mitochondria?
Releases energy
100
Name a non-contact force.
Gravitational potential
Magnetism
Electrostatic
100
What kind of igneous rock is this?
Granite
200
What have these students done correctly in this photo?
Safety glasses, worn their hair back, stand up!
200
Name 3 metallic elements.
Gold, copper, iron, silver, sodium, calcium, mercury, etc...
200
Name an adaptation in a red blood cell that helps it transport oxygen around the body.
Biconcave shape
No nucleus
Haemoglobin
200
This is the energy transfer used in a torch.
Electrical
200
What is a sedimentary rock made from?
Sediments.
300
What does this symbol on the side of a chemical bottle mean?
Flammable
300
Carbon dioxide is an example of this type of molecule.
Compound
300
Substances like oxygen move in and out of cells by the process of _____________?
Diffusion.
300
What is the resultant force and who wins the tug-of-war?
100N - 80N = 20N
Person B wins.
300
Explain why pubic buildings are not made from limestone.
Limestone can be chemically weathered by acid rain.
400
Describe the safety hazard associated with acids.
Corrosive, irritant.
400
How many atoms are in one molecule of glucose (C6H12O6)?
24
6+12+6 = 24
400
Name 2 differences between a plant and animal cell.
1. Vacuole
2. Cell wall
3. Chloroplast
400
Newtons third law is:
'' For every force, there is an _____ and ________ force.''
Fill in the blanks.
For every force, there is an equal and opposite force.''
400
What conditions are needed to make a metamorphic rock.
High heat and pressure.
200oC and 300MPa
500
What does this symbol on the side of a chemical bottle mean?
Hazard to the environment/living things
500
How many grams of iron oxide will you make if you react 15g of iron with 26g of oxygen?
41g!
15g + 26g = 41g
500
How do you focus a microscope?
1. Use the coarse focus to move the slide close to the objective lens
2. Use the fine focus to get a clear image
500
State the energy sources a skydiver has when:
1. They are in the plane
2. They are falling towards the Earth.
1. High gravitational potential energy
2. Gravitational potential energy depleting, kinetic energy increasing
500
Name 2 differences between igneous and sedimentary rocks.
Igneous rocks are made from the cooling of molten rock
Igneous rocks cannot have fossils.
Igneous rocks have crystals.
Sedimentary rocks have layers of sediments.