Fact 1: Glass cause refraction of light. Fact 2: Refraction Refraction is the bending of light rays. Given the two facts above, answer the question "What causes the bending of light rays?" with the following options: - darkness - glass - lenses - fibers - shadows - voltage - colors - a wave
glass

Fact 1: Viruses are so small that they can be seen only with an electron microscope. Fact 2: Once the camera is tuned with the microscope, the focusing depends on the microscope lens. Given the two facts above, answer the question "Viruses are so small that they can be seen by what?" with the following options: - focusing a lens - A computer - looking close - rays or beams - sunlight - bending light rays - seeing smaller - tuning eyes
focusing a lens

Q: Fact 1: Friction causes the temperature of an object to increase. Fact 2: Friction Rubbing an object on another object can produce friction. Given the two facts above, answer the question "what does rubbing an object on another object cause that object to do?" with the following options: - heat production - heat is produced - sandpaper - It gets heated up - decrease in temperature - explode - heat the body - increase in temperature
A: increase in temperature

Question: Fact 1: Nerves can be used to feel heat and pressure on the skin. Fact 2: Sensory Nerve Endings are in involved in sensory reception. Given the two facts above, answer the question "How do you feel heat on your skin?" with the following options: - It burns - Something coming from a gland - Water vapor cooling - Your sensory system picks it up - Your skin peels - matter vibrating - Your skin turns red - By wind and rain
Answer: Your sensory system picks it up

*Question*
Fact 1: Friction causes an object to lose energy. Fact 2: Dear Ashlee, The heat in the reentry phase is due to friction between the spacecraft and the air. Given the two facts above, answer the question "Orbiting spacecraft reentering the Earth's atmosphere" with the following options: - lose energy - dormant state - to move people - migrate - inactive - threatened - rays or beams - It decreases
**Answer**
lose energy

Fact 1: Most invertebrates have a nervous system. Fact 2: Invertebrates are animals without a backbone. Given the two facts above, answer the question "Which type of system do most animals without backbones have?" with the following options: - sensory neurons - Veins and arteries. - Nervous system - Stereo system - Root system - to move people - Skeletal system - insects
Nervous system