Ciencias Naturales 1 Santillana | Pdf Gratis Hot

| Lifestyle Area | Natural Science Connection | |----------------|----------------------------| | | Why fruits & vegetables keep you healthy (vitamins, fibers). | | Exercise | How muscles and bones work together (locomotor system). | | Sleep | Circadian rhythms, brain rest, growth hormone release. | | Hygiene | Germs, immune system, why handwashing works. | | Eco-friendly habits | Recycling, saving water, caring for habitats. |