2024 8th science final

Who made the first atomic theory?

• John Dalton

• Niels Bohr

• J.J. Thompson

• Democritus

Where are the inner transition metals located?

• Left

• Very bottom

• Right

• Middle

How are elements arranged on the periodic table?

• By increasing the atomic mass

• By decreasing atomic mass

• By increasing atomic number

• By decreasing atomic number

What is the most important thing in an animal cell?

• Nucleus

• Lysosome

• Ribosome

• Nucleolus

Which one has a chloroplast?

• Animal cell

• Plant cell

What is amplitude?

• The waves length

• The waves height from the rest position

• The bottom of a wave

• The top of the wave

What is the trough?

• The bottom of the wave

• The top of the wave

• The wave length

• The waves frequency

What is a wave?

• A disturbance that moves energy from one place to another

• A measurement of the amount of energy transferred by a wave

• The distance between the crest of the wave

• The measurement of the number of times it has repeated

What is frequency?

• The bottom of the wave

• The number of waves that pass a given point in a set period of time.

• The top of the wave

• The distance between the crest of the wave

What color is a warm front usually?

• orange

• green

• blue

• red