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Packet | Toss-Up/Bonus | Question Number | Category | Answer Format | Question | Difficulty | Answer |
|---|---|---|---|---|---|---|---|
| MS Sample Set 10, Round 3 | Bonus | 5 | ess | phrase | BONUS ess phraseIn general, what is the minimum number of land-based seismic station measurements needed to determine the location of an earthquake? | 3 | |
| MS Sample Set 12, Round 3 | Toss-Up | 22 | bio | phrase | TOSS-UP bio phraseWhat nerve in the human body is responsible for carrying signals from retinal photoreceptors to the brain? | OPTIC NERVE | |
| HS Sample Set 3, Round 17 | Toss-Up | 15 | chem | multiple_choice | TOSS-UP chem multiple_choiceConsider the following reaction, $$\mathrm{N_2(g)} + 3\,\mathrm{H_2(g)} \rightleftharpoons 2\,\mathrm{NH_3(g)},$$ whose ΔH is –91.8 kJ. If the temperature for the reaction is increased, which of the following will occur: W) the concentration of N₂ increases X) the concentration of H₂ decreases Y) the concentration of NH₃ increases Z) the concentration of N₂ decreases | W) the concentration of N₂ increases | |
| HS Sample Set 3, Round 11 | Bonus | 19 | ess | multiple_choice | BONUS ess multiple_choiceIf ammonoid fossils are found in a sediment layer, the area was MOST likely covered by: W) an ocean X) a large forest Y) a pre-Cambrian swamp Z) a fresh-water basin | W) an ocean | |
| HS Sample Set 9, Round 7 | Toss-Up | 1 | math | phrase | TOSS-UP math phraseA scientist is designing an experiment in which she will determine if there is a correlation between drinking tea and contracting cancer. What statistical term is used to describe the assumption that drinking tea does not correlate with contracting cancer? | NULL HYPOTHESIS | |
| HS Sample Set 2, Round 6 | Toss-Up | 13 | chem | multiple_choice | TOSS-UP chem multiple_choiceA pure enantiomeric sample that rotates plane-polarized light to the right is called which of the following? W) Levorotary X) Dextrorotary Y) Meso Z) Optically inactive | X) Dextrorotary | |
| HS Sample Set 8, Round 7 | Bonus | 14 | bio | multiple_choice | BONUS bio multiple_choiceIn a human, breathing air with too much carbon dioxide would lead to all of the following except: W) A reduction in oxygen carrying capacity X) A decrease in oxygen affinity for hemoglobin Y) Facilitation of oxygen to tissues Z) A rightward shift of the oxygen equilibrium curve | W) A reduction in oxygen carrying capacity | |
| MS Sample Set 10, Round 2 | Toss-Up | 17 | math | phrase | TOSS-UP math phraseFor a group of 200 students, 75 percent had brown eyes, 15 percent had blue eyes, and the rest had green eyes. How many students in the group had green eyes? | 20 | |
| HS Sample Set 11, Round 7 | Toss-Up | 20 | bio | phrase | TOSS-UP bio phraseWhat two blood-sugar-relevant hormones are secreted by the islets of Langerhans? | GLUCAGON AND INSULIN | |
| MS Sample Set 13, Round 2 | Bonus | 9 | ess | order | BONUS ess orderRank the following three reservoirs of Earth’s water supply from largest to smallest: 1) Ground water; 2) Lakes; 3) Glaciers | 3, 1, 2 |