*Question*
If afirecracker converts chemical energy into waves, then what does a firecracker convert chemical energy into? Answer choices: - Light - Energy. - fire - waves - heat - energy - gas - LEDs
**Answer**
waves

*Question*
If animals without backbones are just as nutritious, then what are just as nutritious as animals without backbones? Answer choices: - Organic compounds - bioaerosols - Most plants - dinosaurs - skunks - birds - animals with backbones - microorganisms
**Answer**
animals with backbones

*Question*
If prisms cause refraction of light, then what do prisms do to light? Answer choices: - focusing a lens - Refract it - Reflect it - protect them - Absorb it - observe it - It expands - Diffraction
**Answer**
Refract it

*Question*
If gas can be used to generate heat, then what can be used to generate heat? Answer choices: - wind - desire - knobs - gas - Coal - fire - rain - oil
**Answer**
gas