Biology by Bradford
Water and the elements of life: grass skirts
13 quick questions on AP Biology topics 1.1 Structure of Water and Hydrogen Bonding and 1.2 Elements of Life, each answered in a word or two. Print a sheet for each team, a key for the checker and a tick sheet, then tape the sheets to the board and race.
How it runs
- SnipA runner cuts one strip off the bottom of their team’s sheet.
- Answer as a pairBack at the table, they write the answer on the strip. No books.
- Get it checkedThe checker reads it against the key: you, or a student holding it.
- Back for the nextA tick earns the next strip. Wrong? Back to the table to try again.
The questions on this sheet
The checker’s key, with every answer, prints with the sheets.- Attraction of a δ+ H to a nearby δ− O
- Water molecules clinging to one another
- Water clinging to a different substance
- Film that lets an insect walk on a pond
- Water-loving, like polar or charged groups
- Water-avoiding, like nonpolar groups
- Backbone element of all organic molecules
- Electrons shared unequally, as in O−H
- Electrons shared equally, as in C−C
- Water creeping up a narrow tube
- Energy to warm 1 g of a substance by 1 °C
- Element of proteins and DNA, not glucose
- Element in nucleic acids but not proteins