Answer the following question given this paragraph: A: You can see that snow and sand have a different color. You can also feel that snow is softer than sand. Both color and hardness are physical properties of matter. Q: What are color and hardness physical properties of? Choices: - cells - ions - elements - matter A:
matter
Answer the following question given this paragraph: Orbital Energies and Atomic Structure The energy of atomic orbitals increases as the principal quantum number, n, increases. In any atom with two or more electrons, the repulsion between the electrons makes energies of subshells with different values of l differ so that the energy of the orbitals increases within a shell in the order s < p < d < f. Figure 6.25 depicts how these two trends in increasing energy relate. The 1s orbital at the bottom of the diagram is the orbital with electrons of lowest energy. The energy increases as we move up to the 2s and then 2p, 3s, and 3p orbitals, showing that the increasing n value has more influence on energy than the increasing l value for small atoms. However, this pattern does not hold for larger atoms. The 3d orbital is higher in energy than the 4s orbital. Such overlaps continue to occur frequently as we move up the chart. Q: How is the energy of an atomic orbital affected as the principal quantum number increases? Choices: - it decreases - It doubles - It triples - it increases A:
it increases
Q: Answer the following question given this paragraph: Yes! The outer core, anyway. The outer core is liquid metal, like in this photo. Of course, the metal is under an incredible amount of pressure. Q: What is the outer core made of? Choices: - compressed air - solid rock - solid iron - liquid metal A:
A: liquid metal
Question: Answer the following question given this paragraph: Sperm cells are the only human cell with flagella . This is because of their need to "swim" long distances to reach an egg for fertilization. Q: What is the only human cell with flagella? Choices: - egg - saliva - Feces - sperm A:
Answer: sperm
*Question*
Answer the following question given this paragraph: Types of home heating systems include hot-water, warm-air, and solar heating systems. All of them have the same basic function: producing thermal energy and transferring it to air throughout the house. Q: Different types of home heating systems all function by producing what type of energy? Choices: - electron - natural - distinct - thermal A:
**Answer**
thermal
Q: Answer the following question given this paragraph: Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the spinal cord. In other words, they carry information about the inside and outside environment to the brain. Q: Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the? Choices: - nervous system - nerve endings - spinal column - spinal cord A:
A: spinal cord