what do sports engineers do once they identify a problem in a sport?
* they change the rules in the sport
* they come up with a model that solves it
* they look for problems in a different sport.
* they ask other engineers their opinions about the problem.
* they come up with a model that solves it
We will______ the water to make tea.
* bail
*boil
*bowl
*bull
*boil
Mom bought us a new______ at the store
* toe
* toil
* ton
* toy
* toy
contribute
to help or add to
flexible
able to bend
how were tennis rackets FIRST made?
*from wood
* from metal
* from plastic and rubber
* from many combined materials
* from plastic and rubber
The children will ______ hearing the story
* engine
* engineer
*enjoin
* enjoy
* enjoy
Joe made the arrow______ to the right
* paint
* paste
* point
* punt
* point
athletes
people who play sports
fraction
a part of a whole unit
how does the author organize the ideas in the second paragraph of the section "More Bounce to the Ball"?
* by telling about the first tennis balls
* by comparing a tennis ball to other types of balls
* by describing the way rubber has improved over the years
*by describing the steps to make tennis ball in the order they happen
by describing the steps to make tennis ball in the order they happen
The wind made a______ as it moved through the trees.
*nice
*noise
*noose
*nose
*noise
improve
to get better
compete
to try to do something better than others
why was 1975 an important year for the Boston Marathon?
* it was the first year the race was ran
* it was the first time runners ran on a track
* an athlete in a wheelchair completed the race for the first time.
* a new high-tech wheelchair was used in the race for the first time.
* an athlete in a wheelchair completed the race for the first time.
The______ ran outside to play.
* bay
* boa
* bow
* boy
* boy
power
strength
The girl sang with a soft
* vase
* vice
* visit
* voice
* voice
process
the steps taken to complete a task