Science Review #2 Assessment #1/III Period

Choose a solution for the problem: It's dangerous to ride a bike.

• Don´t wear a helmet.

• Drive fast.

• Wear a helmet and kneepads.

• Wear sunglasses.

Find a solution for the problem: I don´t want to get wet in the rain.

• Use an umbrella.

• Don´t wear boots.

• Wear a helmet.

• Wear earmuffs.

Complete the design process in the ocrrect order. 1- identify the problem. 2. brainstorm ideas. 3. _________, 4. build. 5. test. 6. _________.

• 3. improve.

  6. draw and plan.

• 3. draw and plan. 6. improve

• 3. analyze

  6. think

• 3. draw and plan

  6. observe

_____________ are things we use to do specific things.

• Machines

• Tools

• simple

• Complex machines

__________ reduce the effort we need to do things.

• Tools

• Things

• Objects

• Machines

Look at the picture and select the correct answer.

• machine

• tool

• complex machine

• simple machine

Look at the picture and choose the correct answer:

• Machine

• simple machine

• tool

• car

They have few or no moving parts.

• complex machines

• simple machines

• tools

• motorcycle

What is the simple machine in the picture?

• inclined plane

• wedge

• lever

• pulley

What is the simple machine in the picture?

• pulley

• wedge

• screw

• lever