Science Chapter 3 Lesson 5

The process of asking questions is …

inquiry

This is anything that takes up space and has mass.

matter

This is a tool that can be used to measure volume.

Graduated cylinder

This is when we look for answers..

investigate

This is the way on object feels to the touch…

texture

A person who asks questions about the natural world is a…

scientist

A circuit with no gaps or breaks..

Closed circuit

A circuit with a broken path…

Open circuit

This allows you to open and close a circuit without disconnecting a wire

switch

A material through which electric charge easily move.

conductor

Materials that stop the movement of electric charge.

insulator

Every circuit needs a source of …

energy

The symbol (--) indicates what kind of electric charge..

negative

An ___ charge is a tiny amount of energy.

electric

Two objects with the same charge near each other will ___ each other.

Push away

The symbol (+) indicates what kind of electric charge.

positive

Two objects with opposite charges ___ each other.

attract

The movement of electric charge from one place to another is electric…

current

An electric current must travel in a ___ path through wires and other materials.

controlled

Insulators protect workers from being….

shocked

Lightning is an example of …

electricity

What kind of electricity moves through a wire?

current

A good conductor of electricity for your toaster cord would be….

copper

How are conductors and insulators different?

Electric charges move easily through a conductor Electric charges move easily through a conductor. It doesn’t move through an insulator

If you had several bulbs wired together and one bulb burns out, what will happen to the other bulbs?

They won’t stay lit

Why is plastic used for covering wires?

Plastic is a good insulator

What is the difference between an electric current and an electric circuit?

Current – movement of electric charges Circuit – path through which electric current flows

Be able to identify batteries that have open and closed circuits.

Closed circuits have electricity open circuits do not!