RADIATION & PHOTOSYNTHESIS MAKING LIFE POSSIBLE ON EARTH

VISIBLE LIGHT AND PHOTOSYNTHESIS www.sciencetutors.zoomshare.com Make a list of things that a plant needs for photosynthesis?

VISIBLE LIGHT AND PHOTOSYNTHESIS www.sciencetutors.zoomshare.com Energy in visible light from the sun is used by green plants to make food in a process called photosynthesis.

Chlorophyll in Plants www.sciencetutors.zoomshare.com Chlorophyll is the green pigmentation or pigment in leaves that help plants to absorb or trap light energy from the sun to make food. Chlorophyll in plants Why is chlorophyll important?

Word Equation for Photosynthesis Write down the word equation for photosynthesis using the pictures below

FACTS ABOUT PHOTOSYNTHESIS 1 . Plants uses carbon dioxide, water and energy from visible light to make glucose (sugar). 2. By-products such as oxygen is released into the atmosphere and the sugar is used for energy or converted starch and stored in the plant www.sciencetutors.zoomshare.com

RADIATION AND PHOTOSYNTHESIS www.sciencetutors.zoomshare.com The radiation from the sun passes through the atmosphere and reaches the surface the Earth providing heat and visible light (energy) that is needed by most plants and animals.

Quick Quiz www.sciencetutors.zoomshare.com ...........uses oxygen and releases ............... ...............as was waste or by-product Plants recycle ...... .........back into the making their food. A green pigment in ..............called ................absorbs light energy from the sun. Animals and plants use .............for respiration. Copy and complete the following using the following keywords: Respiration carbon dioxide plants chlorophyll Oxygen

...........uses oxygen and releases ............... ...............as was waste or by-product

Plants recycle ...... .........back into the making their food. A green pigment in ..............called ................absorbs light energy from the sun.

Animals and plants use .............for respiration.

Carbon dioxide + water light sugar + oxygen www.sciencetutors.zoomshare.com Chlorophyll

Carbon dioxide in the Atmosphere www.sciencetutors.zoomshare.com Q1: Make a list of activities that can increase the amount of carbon dioxide in the atmosphere.

Carbon dioxide in the Atmosphere www.sciencetutors.zoomshare.com Q2: Why is the amount of carbon dioxide in the air slightly less during the summer months than it is during the winter months?

Carbon dioxide in the Atmosphere www.sciencetutors.zoomshare.com Q3: Write the word equation of respiration and explain how this equation is different from the word equation of photosynthesis