Science Review

When you add heat to molecules, what happens?

• They move faster and spread out

• They slow down and spread out

• They slow down and get closer

• They move faster and get closer

What is it called when light is bent as it travels through an object?

• Reflection

• Refraction

• Abrasion

• Amplitude

A rollercoaster at the top of a hill has what kind of energy?

• Potential Energy

• Electromagnetic Energy

• Kinetic Energy

• Sound Energy

If you have two objects that have the same mass/weight but are different volumes, which is more dense?

• The one that floats

• The smaller one

• The larger one

• The one that weighs more

What units would you use to measure liquid volume?

• meters

• grams

• liters

• degrees

In the scientific question: "Do plants need light to grow?", what is the independent variable?

• type of plants

• height of plants

• amount of light

• amount of water

What is it called when a gas turns into a liquid?

• melting

• freezing

• evaporation

• condensation

Burning wood is an example of a

• physical change

• chemical change

Which wave has the lowest frequency?

• Red (the one that starts on top)

• Blue (second from the top)

• Green (starts around 0.5)

• Pink (squiggly line in middle)

Which cell is a PLANT cell?

• The round cell on the LEFT

• The square cell on the RIGHT