91��

Please consent to cookies to view content.

` ); iframeDoc.close(); } } } } } const observer = new MutationObserver(switchSrc); observer.observe(document.documentElement, { childList: true, subtree: true, }); })();

91��

International
Resources
Education Jobs
Schools directory
News
Courses
Store

91�� for schools Log in Register for free

Resources Education Jobs Schools directory News Magazine Courses Log out Help

Home feed

My list

Courses My Jobs Job alerts My CV Career preferences Resources Author dashboard

Settings

Edit account Log out

Home Resources Jobs Schools directory News Magazine Courses Register for free Log in Help

Already registered?

Education jobs

My jobs Job alerts My CV Career preferences

Resources

Downloads Saved resources Author dashboard Add resource

News

Magazine Subscriptions Payments

About us My products 91�� for schools Work for 91��

Dr. Ilia Sholin's Shop

Add a resource
Edit shop

Dr. Ilia Sholin's Shop

Edit shop
Add a resource

2Uploads

279Views

28Downloads

All resources
Biology
Geography
Physics
Understanding the world

Understanding the world

Pro et contra - the element of the scientific method

FREE

(0)

Jobs home UK International Australia Primary / Elementary Secondary / High school Careers advice 91�� for schools

Courses home For prospective teachers For teachers For schools For partners

Resources home Early years / Pre-K and Kindergarten Primary / Elementary Middle school Secondary / High school Whole school Special Educational Needs Blog

Store home Magazine

News Magazine New teachers Partners

Select country

Chat About us Corporate FAQs Contact us Privacy notice General Terms of Business Accessibility statement Fair recruitment policy Takedown Work for 91�� 91�� research panel Modern slavery statement Children's Privacy Notice

This website and its content is subject to our Terms and Conditions. 91�� is registered in England (Company No 02017289) with its registered office at Building 3, St Paul’s Place, Norfolk Street, Sheffield, S1 2JE

91����

91����

Dr. Ilia Sholin's Shop

Understanding the world

Pro et contra - the element of the scientific method

91��

91��