question below:
Which scientific model could be used to predict the properties of an element?
OPTIONS:
- closed loop system
- Punnett square
- Periodic Table
- water cycle chart
answer below:
Periodic Table

question below:
Which two factors determine the gravitational attraction between two objects?
OPTIONS:
- time and temperature
- shape and orbital speed
- color and hardness
- mass and distance apart
answer below:
mass and distance apart

question below:
Which of the following organisms produces energy from sunlight?
OPTIONS:
- worm
- rabbit
- hawk
- grass
answer below:
grass

question below:
Which of the following elements is best able to combine with itself and hydrogen [H] to form large molecules?
OPTIONS:
- sodium [Na]
- lithium [Li]
- sulfur [S]
- carbon [C]
answer below:
carbon [C]