11753535
Descripción
Test por Samina Rashid, actualizado hace más de 1 año
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Creado por Samina Rashid
hace casi 7 años
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Pregunta 1
Pregunta
What is the common name for group 1 in the periodic table?
Respuesta
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alkaline earth metals
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alkali metals
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halogen metals
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transition metals
Pregunta 2
Pregunta
Describe the structure of DNA
Respuesta
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2 strands of amino acids joined together in a twisted ladder
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one strand of nitrogen bases twisted into a ladder
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2 strands of nitrogen bases held in twisted ladder.
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one strand of amino acids twisted into a ladder
Pregunta 3
Pregunta
How do earthquakes occur
Respuesta
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when two techtonic plates collide
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when one techtonic plate sinks under the other
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when a volcano erupts nearby
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when two techtonic plates slide past each other
Pregunta 4
Pregunta
List three features of plant cells that you would not find in an animal cell.
Respuesta
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cell membrane, nucleus, chloroplasts
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cell wall, chloroplasts, cytoplasm
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cell wall, vacuole, chloroplasts
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cell membrane, vacuole, plasma
Pregunta 5
Pregunta
Which of the following is NOT a greenhouse gas
Respuesta
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carbon dioxide
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water vapour
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methane
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ozone
Pregunta 6
Pregunta
Which of the following is the correct order for the waves in the electromagnetic spectrum
Respuesta
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gamma rays, X-rays, infrared, visible, UV, and radio waves
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radio waves, X-rays, UV, visible, infrared, and gamma rays
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gamma rays, X-rays, UV, visible, infrared, and radio waves
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X-rays, gamma rays, UV, visible, infrared, and radio waves
Pregunta 7
Pregunta
Momentum= mass x velocity. A ball flies at 250m/s. It's momentum = 30 000kgm/s. Calculate mass.
Respuesta
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750
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75,000,000
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120
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1.2
Pregunta 8
Pregunta
Which method would you use to separate a mixture of inks in a felt tip pen?
Respuesta
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distillation
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filtration
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chromatography
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dissolution
Pregunta 9
Pregunta
In the periodic table how are the elements arranged?
Respuesta
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according to atomic mass
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non metals first then metals
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according to atomic number
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according to their reactivity
Pregunta 10
Pregunta
Which of the following shows the correct pathway of blood as it's pumped through the heart.
Respuesta
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vena cava, right atrium, right ventricle, pulmonary artery
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aorta, left atrium, right atrium, pulmonary artery
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vena cava, left atrium, right ventricle, pulmonary vein
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pulmonary vein, right atrium, right ventricle, pulmonary art
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