Help Grade 1 science students master materials and light vocabulary with this print-and-go flashcard pack. Color picture cards, illustrated definition cards, black-and-white coloring cards, and two write-the-name worksheets make it simple to adapt for introduction, practice, centers, or review.

What students practice

• Transparent: Transparent materials let light pass through so we can see clearly through them.
• Translucent: Translucent materials let light through but scatter it, so things look blurry.
• Opaque: Opaque materials block light, so we cannot see through them.
• Reflect: To reflect means to bounce light off a surface.
• Window Glass: Clear window glass lets light through so we can see outside.
• Clear Water: Clear water lets light through and is transparent.
• Wax Paper: Thin wax paper lets some light through but makes objects behind it look blurry.
• Frosted Glass: Frosted glass lets light through but blurs objects behind it.
• Wood: A thick piece of wood blocks light and is opaque.
• Book: A closed book blocks light and is opaque.
• Mirror: A mirror reflects light so we can see an image.
• Foil: Foil blocks light and has a shiny surface that reflects light.

What’s included (10 pages)

• color picture cards (2 pages: 1, 2): Transparent, Translucent, Opaque, Reflect, Window Glass, Clear Water; Wax Paper, Frosted Glass, Wood, Book, Mirror, Foil
• illustrated definition cards (4 pages: 3, 4, 5, 6): Transparent, Translucent, Opaque; Reflect, Window Glass, Clear Water; Wax Paper, Frosted Glass, Wood; Book, Mirror, Foil
• coloring cards (2 pages: 7, 8): Transparent, Translucent, Opaque, Reflect, Window Glass, Clear Water; Wax Paper, Frosted Glass, Wood, Book, Mirror, Foil
• write the name worksheet (2 pages: 9, 10) — “Look at each picture and write the correct name in the box.”: Transparent, Translucent, Opaque, Reflect, Window Glass, Clear Water; Wax Paper, Frosted Glass, Wood, Book, Mirror, Foil
• 10-page printable PDF (US Letter, 8.5 × 11 inches) — print and go, no prep

How to use it in class

• Science warm-ups, centers, and small-group vocabulary practice
• Introduce or review terms before a materials-and-light investigation
• Coloring cards for ink-saving practice or early finishers
• Write-the-name worksheets as a quick check for understanding
• Sub plans — print and go

This pack is a supporting vocabulary fit to NGSS 1-PS4-3 (Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light), because the cards help students name transparent, translucent, and opaque materials, describe whether light passes through or is blocked, and use the word reflect for light that bounces off a surface. This is vocabulary practice with picture, definition, coloring, and write-the-name pages, not a complete 1-PS4-3 investigation. The PDF does not print a grade or standard code. Best-fit tag is Grade 1, matching NGSS 1-PS4-3 materials-and-light vocabulary.

At a glance

• Grade: 1
• Subject: Science
• Pages: 10 (US Letter printable PDF)
• Terms: 12
• Standards: NGSS-aligned (supporting vocabulary fit to 1-PS4-3)
• Format: Instant digital download after purchase