*Question*
Q: In which period of the periodic table is nickel found? Choices: - First Period - Second Period - Third Period - fourth period A:
**Answer**
fourth period

*Question*
Q: Scientists think the solar system formed from a big cloud of gas and dust called what? Choices: - comet - supernova - Oort cloud - nebula A:
**Answer**
nebula

*Question*
Q: The type of what dictates how far it can penetrate into matter, such as lead or human flesh? Choices: - insulation - evaporation - specific gravity - radiation A:
**Answer**
radiation

*Question*
Q: What is the final product of the calvin cycle? Choices: - energy - chloride - insulin - glucose A:
**Answer**
glucose