Questions with the keyword 'cold'

• Why is liquid nitrogen so cold? by Qwertyman123 to Áine Comments: (No comments so far )
• How does a fridge keep food cold? by Erin to Ciarán Comments: (No comments so far )
• Is it mostly cold or hot in homes? :) by SsaraHh to Áine, Lydia Comments: (No comments so far )