Free sample focus: Build a tiny rescue ramp, mark the car’s stopping places, and let the evidence show how pushes change motion.
Showcase sample
Build a tiny rescue ramp, mark the car’s stopping places, and let the evidence show how pushes change motion.
A push can start an object moving, and changing the push or ramp can change how far it goes.
📋 NGSS Alignment: K-PS2-1 / K-PS2-2 — Plan and carry out investigations to compare how pushes and pulls change motion.
🎯 Learning Objective
Students will use a toy ramp to observe how a gentle push, a stronger push, and a higher starting place change how far an object rolls.
💡 The Big Idea
A push can start an object moving, and changing the push or ramp can change how far it goes.
Ramp evidence map
Students can see the science because the stopping marks make motion visible: gentle push, stronger push, and higher ramp become three easy-to-compare pieces of evidence.
Mark each stopping place
Compare one change at a time
Explain which test reached farther
🔬 Key Vocabulary
pushpullmotionrampfartherevidence
📦 Materials
Toy car or small rolling object
Book or cardboard ramp
Tape or sticky notes for distance markers
Stuffed animal “rescue target”
Crayon or pencil
Printable worksheet
🧪 Investigation
Step 1 — Set the scene Place a stuffed animal at the end of a “road.” Tell students the car needs just enough push to reach the helper target.
Step 2 — Try a gentle push Start the car at the top of the ramp and give one tiny push. Mark where it stops.
Step 3 — Try a stronger push Use the same ramp and give a stronger push. Mark the new stopping place.
Step 4 — Change the ramp height Add one book under the ramp and try again with the same gentle push.
Step 5 — Compare the evidence Circle which test made the car go farthest and say what changed.
Step 6 — Rescue explanation Students finish: “The car rolled farther when ___ because ___.”
💬 Discussion Questions
What made the car start moving?Use evidence from the activity in your answer.
Which test made the car roll farthest?Use evidence from the activity in your answer.
What stayed the same so the comparison was fair?Use evidence from the activity in your answer.
🚀 Extension
Try this next: Ask your child to repeat one part of the test tomorrow or with one changed material, then explain what stayed the same and what changed.
👩🏫 Parent/Teacher Notes
At-home win: This free sample is complete enough to teach today and polished enough to show how a full Little Lab Coats lesson feels.
Evidence move: Press students to point to a mark, drawing, comparison, or observation before they explain.
Family-friendly pacing: If attention is short, do steps 1–4 today and the worksheet discussion later.
A strong kindergarten answer says that the car rolled farther when the push was stronger or when the ramp was higher, and points to the distance marks as evidence.
Student names the important observation or test result.
Student uses unit vocabulary in a simple sentence.
Student connects evidence to the science idea instead of guessing.
