Quiz____?
Scientific method: -
Answer✓✓
1) Observation
2) Question
3) Hypothesis
4) Design an experiment
5) Prediction
6) Do experiment/collect data
7) Analyze data
Quiz____?
What 4 elements make up 96% of living matter? -
Answer✓✓
Carbon, hydrogen, oxygen, nitrogen
Quiz____?
Atomic Number -
Answer✓✓
Number of protons in the nucleus
1
, Quiz____?
Mass Number -
Answer✓✓
Sum of protons and neutrons
Quiz____?
Isotopes -
Answer✓✓
Different number of neutrons
Quiz____?
Radioactive isotope -
Answer✓✓
decay spontaneously, giving off energy
Quiz____?
Valence Electrons -
Answer✓✓
found in outermost shell (valence shell)
Quiz____?
Covalent Bond -
Answer✓✓
shared electrons
2