Science: Energy and Photosynthesis

Flashcards covering the key concepts of science related to energy and photosynthesis.

Plants need these 3 basic things: __, food and water.

Air

Energy is the ability to do __.

work

Energy can't be created or destroyed; it can only be created from one __ to another.

form

Plants have a process called __ to make their own food.

Photosynthesis

Chlorophyll is the green substance in leaves that traps __ energy.

light

Plants absorb __ through their roots to make food.

water

Carbon dioxide enters the plant through tiny openings on its __.

leaves

The food made during photosynthesis is __ or glucose.

Sugar

Extra sugar produced by plants is stored as __.

Starch

Iodine changes from yellowish brown to __ when starch is present.

blue black

Plants use energy in the sugar to stay __.

alive

Without the Sun, plants would not be able to __.

Photosynthesis

Living things need __ for their daily activities.

energy

Types of energy include kinetic, potential, chemical, __, heat, and sound.

light

Energy is stored in food, fuels, and __.

batteries

Potential energy is stored energy and can be due to __ or position.

height

Kinetic energy is associated with __ objects.

moving

Chemical potential energy stored in food allows us to do __.

work

Gravitational potential energy formula is G.P.E = __.

mxgxh

Energy used by machines comes from __.

various sources including the Sun.