Which planet is known as the Red Planet?

What is the largest planet in our solar system?

Which planet is known for its beautiful rings?

What is the fifth closest planet to the Sun?

How long does the Earth take to rotate on its own axis?

Earth takes ____________ to orbit around the Sun.

At position A, which hemisphere would have summer?

What happens when the area in which you live tilts away from the sun?

What causes seasons?

Our food contains ___________ energy.

Thermal energy comes from ___________.

What is the name of the force that slows parachutes down as they fall?

Name the force that makes the car travel different distances on different surfaces.

Rough surfaces create _________ friction than smooth surfaces.

A change that makes new

substances is ___________.

Indicate which changes are reversible.

Tick the solvent.

Tick the solutes.

Which material is insoluble?

Which process would you use to separate sand and water?

Which process would you use to separate sugar and water?

Which process would you use to separate beads and marbles?

Identify the energy transfer

Identify the energy transfer

When you eat food, your body gains ___________ energy.

Which type of energy is NOT given off by a fire?

There is ______ friction on a smooth surface.

Friction moves in the ______ direction of the object moving.

What will happen to the friction when an item moves on a rough surface?

When is having less friction useful?

We use oil to _____ the friction between the moving parts inside a car engine.

What would happen if you polished a wooden floor?

Which two of these forces act on parachutes?

What causes an object to fall faster?

Another name for air resistance is...

The larger the surface area of the moving object, the ___________ air resistance there is.

Air resistance pushes against falling

objects and __________________.

Which has more air resistance?

Air resistance is a force caused by...

The more streamlined an object is, the...

When dropped from the same distance, which will fall to the floor faster?

Waterproof material

Shiny and conducts electricity

It does NOT dissolve in water.

A mixture that looks clear contains _________ substance.

flour

pepper

rice grains

baking powder

Sofia separated a mixture (soil and water). At the end, she had clean water using a separation technique. What is the name of the separation technique she used?

What is the name of the separation technique should a student use to separate the iron filings?

Melting, freezing and rusting are some examples of reversible changes.