What changes when you fold a sheet of paper without cutting it?

What should stay the same when comparing how differently shaped paper pieces fall?

A sheet is squeezed into a tight ball. What happens to the space it covers?

What wheel shape helps a bicycle roll evenly?

What surface texture does sandpaper usually have?

Rico wants a marble to roll farther after a gentle flick. What surface should he use?

When tires cross road rumble strips, what warns the driver?

Identical blocks slide equally fast on level surfaces: smooth wood and sandpaper. Which usually stops sooner?

What change can make a toy car start moving faster on the same floor?

A clay ball is pressed flat. How will this affect its rolling on a flat floor?

What happens to a half-filled bottle's weight when more water is added?

What can Paolo do to make a grocery cart easier to start moving?

How does adding a load affect stopping a cart moving at the same speed?

In a fair bottle experiment, what should you change to study the effect of heaviness?

What do we call a fixed object used to describe another object's location?

Look at the picture. Where is the cat compared with the box?

Use the picture to describe the ball's location relative to the box.

Complete the picture's description: The pencil is ___ the box.

Lito faces the board and steps opposite his right side. In what direction does he move?

A toy car rolls away from a fixed pencil case. How does the distance between them change?