Notice & predict
One moment, two places
Predict two lit marks.
Curiosity Bundle
Why is it daytime here and nighttime somewhere else?
Two places can share a planet and have different daylight.
Turn a marked ball in a fixed beam. Explore how a shared moment can be bright in one place and dark in another.
IgniteStart with the puzzle
Put two paper marks on opposite sides of a ball. Ask, "Can this one be in light while that one is in darkness?"
Offer one puzzle. Leave room for a guess.
Put two paper marks on opposite sides of a ball. Ask, "Can this one be in light while that one is in darkness?"
Another way to begin
Keep a flashlight still and ask, "What could change if only the ball turns?"
Use a rounded paper ball and a small flashlight in a dim room.
KindleOne moment, two places
Notice and predict before reading. Keep the first idea.
ReadExplore the place and the idea
Both readings are part of the exploration. Read together or across days.
DoTry it and look again
Try the investigation and record what you notice.
Investigation
Turn the place, keep the light
Rotate a marked ball.
CheckWhat would you say now?
Revisit the readings and investigation. Parent answers print separately.
A light check
What would you say now?
Revisit both readings.
Sources and review notes
Local review edition. Physical activities, diagrams, and family usability still need review. Times are estimates. See the parent guide for each activity’s safety instructions and model limits.
- What Causes Day and Night?Brief source checked; rotation and about 24-hour everyday day.