⭐ First Grade Science – Waves, Light, & Sound PowerPoint Lesson ⭐ Aligned to 1st Grade Standards (NGSS 1-PS4-1 through 1-PS4-4)Make teaching physical science fun and accessible for your first graders! This engaging, kid-friendly PowerPoint introduces light, sound, and simple waves using clear visuals, real-life examples, and language that young learners can understand. This lesson is designed specifically for first-grade science standards, helping students explore how light helps us see, ho