Part 2 Test Grade 3

The use of science knowledge to invent tools and new ways of doing things

• technology

• vaccines

• xrays

• magic

_________ panels gather the sun's energy and change it into electricity

Which scientific discovery can prevent disease

• transportation

• x rays

• vaccine

• gps

Which type of technology uses a computer chip (select all that apply)

• camera

• appliances

• cars

• calculators

What does work mean?

What is the difference between a simple machine and a complex machine?

Match the following examples to the correct simple machine:

Wheel and Axel

Screw

Wedge

Pulley

Lever

Inclined Plane

1. 1. Axe 4. Skateboard ramp

2. 2. Crane 5. Teeter totter

3. 3. Top of a jar 6. Tire

Step-by-step method used to solve a problem

• research

• design process

• engineer

• work

What is a prototype?

List the steps (in order) of the Design Process?