7grade holiday

Cell

• the basic unit of life

Atom

the smallest unit of matter

• Molecule

• two or more atoms joined together

• Organism

• a living thing

• Photosynthesis

• how plants make food using sunlight

• Respiration

• the process of releasing energy from food

• Force

Push or pull

• Gravity

• the force that pulls objects toward Earth

Energy

• the ability to do work

Matter

• anything that has mass and takes up space

• Friction

• a force that slows movement

• Evaporation

When liquid turns to gas

• Condensation

Gas change to liquid

• Ecosystem

Living things and there environment

• Habitat

• the natural home of an organi

• Adaptation

• a feature that helps an organism survive

• Chemical Reaction

• when substances change into new substances

• Solution

• a mixture where one substance dissolves in another

• Density

• how much mass is packed into a space

• Hypothesis

• an educated prediction in an experiment

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