Science Review!

Organisms who receive their energy by consuming other organisms.

• Chloroplast
• Heterotroph
• Autotroph
• Phototropism

The part of a cell that contains the DNA in eukaryotic cells.

• Chloroplasts
• Cell Wall
• Nucleus
• Homeostasis

The term used to define a cell that has a nucleus containing DNA.

• Prokaryote
• Eukaryote
• Autotroph
• Homeostasis

A cell without a nucleus.

• Eukaryotic
• Prokaryotic
• Heterotroph

Organisms who receive energy from dead or decaying matter.

• Prokaryotic
• Omnivore
• Heterotrophic
• Decomposers

Organisms who make their own energy by taking in light or chemicals.

• Heterotroph
• Phototropism
• Autotroph
• Heterotroph

A chemical change is different than a physical change because in a chemical change...

• Chemicals are used

• A new substance is formed and in a physical change no new substance is formed

• Molecules do not physically touch

• The change can be seen but in a physical change it cannot

One clue of a chemical change is the formation of a precipitate. A precipitate is formed when...

• Two liquids react and a gas is produced

• A solid dissolves in a liquid

• One liquid dissolves in another

• Two liquids react and a solid is formed

The density of an object is...

• The mass divided by the volume D = m/v

• The volume divided by the mass D = v/m

• The same as its weight

• The same as the size of the object

A tiny piece of sand is very light but sinks in water. This is because...

• Sand is a solid

• Sand is less dense than water

• There is more water than sand

• Sand is more dense than water