Science Grade 2 Ginette Boudreau Source for image:
Students will learn about: Amphibians Metamorphosis and development of frogs A frog’s life cycle Characteristics of frogs and tadpoles The needs of frogs and tadpoles
Task: 1. Find a partner and tell each other what you already know about frogs. 2. Continue reading the powerpoint.
Frogs… have backbones live part of their lives in water and the other part on land are cold blooded return to the water to lay eggs image: answersingenesis.org,Retrieved January,
It means change in appearance It means transformation Frogs go through an important physical change called metamorphosis
Adult frog Frogs mate Lay eggsTadpoles
In Spring Males sing to attract a female in the spring They often mate in the water Females lay many eggs in the water Males fertilize the eggs once they are laid Mating image:: Retrieved January 18, 2011 from the-reaction.blogspot.com/2007_03_11_archive.htm
Eggs are covered in a jelly substance They are found in water Hatch in 6 to 21 days They become Tadpoles Startosta,P. (photographe of egg). (1991). La grenouille, Belgique,Éditions Milan
Come out of the egg after 21 days Live underwater for 90 days Eat aquatic plants Breathe with their gills Startosta,P. (photographe of tadpole). (1991). La grenouille, Belgique,Éditions Milan
During 90 days, the tadpoles will have a very interesting transformation called … Guess what is the answer? Click and reveal
Day 1 Week 6 Week 10 Startosta,P. (photographe of life cycle). (1991). La grenouille, Belgique,Éditions Milan
Task: In your art journal, draw what you think the tadpole will look like at week 14.
Click on the link to watch a video of the frog’s life cycle MQf4 MQf4
Live in water and on land Eat insects Have 4 legs Breathe with lungs Do not have a tail Swim and leap Source for image:
(Did you know) o=portal.nbed.nb.ca,SSL+You%20and%20Your%20 World%20Grades%20K%20-2%20English.pdf (NBED Curriculum) o=portal.nbed.nb.ca,SSL+You%20and%20Your%20 World%20Grades%20K%20-2%20English.pdf (video-how tadpoles change) Retrieved on January 18, &feature=related (animal life cycles) &feature=related
imaux&scat=grenouille&debut=60&nba=6&s uite=yes (all clipart in this presentation) imaux&scat=grenouille&debut=60&nba=6&s uite=yes Pictures in the presentation (see below picture for references)