Which Word
Stronger, Better, Faster
In the Past
Book Talk
Definitions
100
Football players wear _____ to protect their heads.

Helmet

100

Safe -->

Safer

100
The football players score a goal.

The football players scored a goal.

100

What kind of shirts do football officials wear?

Football officials wear striped shirts.

100

Zebra and football officials have these.

Stripes

200

This person designs and builds things like bridges and machines.

Engineer

200

Easy -->

Easier

200

The satellite sends signals.

The satellite sent signals.

200

What forces act on a bridge?

Wind, gravity, and tension

200

Things that push, pull, or move things.

Forces
300

"Land of the free and home of the _______"

Brave

300

Dangerous

More Dangerous

300
Engineers build bridges.

Engineers built bridges.

300

Why do earthquakes make buildings collapse?

Earthquakes push buildings side to side.

300

A machine that orbits the earth and sends signals.

Satellite

400

A repeated design or sequence in geometry.

Pattern

400

Good

Better

400

People stand up for the anthem.

People stood up for the anthem.

400
How do scientists use geometry?

Scientists use geometry to measure size and distance.


Scientists use geometry to study space.

400

When the ground shakes.

Earthquake

500

Something that can move an object. For example, gravity.

Forces

500

Fun

More Fun

500

Earthquakes shake the tower.

Earthquakes shook the tower.

500

Who Wrote the U.S. National Anthem

Francis Scott Key

500

Having length, width, and height

Three Dimensional / 3-D