What is the common name for group 1 in the periodic table?
alkaline earth metals
alkali metals
halogen metals
transition metals
Describe the structure of DNA
2 strands of amino acids joined together in a twisted ladder
one strand of nitrogen bases twisted into a ladder
2 strands of nitrogen bases held in twisted ladder.
one strand of amino acids twisted into a ladder
How do earthquakes occur
when two techtonic plates collide
when one techtonic plate sinks under the other
when a volcano erupts nearby
when two techtonic plates slide past each other
List three features of plant cells that you would not find in an animal cell.
cell membrane, nucleus, chloroplasts
cell wall, chloroplasts, cytoplasm
cell wall, vacuole, chloroplasts
cell membrane, vacuole, plasma
Which of the following is NOT a greenhouse gas
carbon dioxide
water vapour
methane
ozone
Which of the following is the correct order for the waves in the electromagnetic spectrum
gamma rays, X-rays, infrared, visible, UV, and radio waves
radio waves, X-rays, UV, visible, infrared, and gamma rays
gamma rays, X-rays, UV, visible, infrared, and radio waves
X-rays, gamma rays, UV, visible, infrared, and radio waves
Momentum= mass x velocity. A ball flies at 250m/s. It's momentum = 30 000kgm/s. Calculate mass.
750
75,000,000
120
1.2
Which method would you use to separate a mixture of inks in a felt tip pen?
distillation
filtration
chromatography
dissolution
In the periodic table how are the elements arranged?
according to atomic mass
non metals first then metals
according to atomic number
according to their reactivity
Which of the following shows the correct pathway of blood as it's pumped through the heart.
vena cava, right atrium, right ventricle, pulmonary artery
aorta, left atrium, right atrium, pulmonary artery
vena cava, left atrium, right ventricle, pulmonary vein
pulmonary vein, right atrium, right ventricle, pulmonary art
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