Year 7 Chemistry
What are the three states of matter
Solid, liquid, gas
What force pulls objects toward Earth?
Gravity
What is the smallest building block of life
Cell
What should you wear to protect your eyes during an experiment?
Safety glasses
How many ribs are typically in a human body?
Twenty-four
This state change turns a gas back to a liquid.
Condensation
A book is sitting still on a table. Are the forces acting on it balanced or unbalanced?
Balanced
What do the arrows in a food chain or food web represent?
The direction of energy transfer
This equipment is used to measure temperature
Thermometer
What is the rarest M&M colour?
Brown
What separation technique can you use for salt water
Evaporation
The energy stored in an object when it is stretched or compressed
Elastic energy
Why are decomposers important in an ecosystem?
They recycle nutrients
This equipment is used to measure force
Spring balance
What is the largest country by area?
Russia
Distillation separates substances based on
Boiling point
A car is travelling at a constant speed in a straight line. The engine provides a 600 N forward force. What must the total backward force be?
600 N
Two organisms are in the same family but different genera. Another two are in the same genus but different species. Which pair is more closely related?
The pair in the same genus
Three requirements for writing a method
Numbered, past tense, third person
Creme Puff, the oldest recorded living cat, lived to what age?
38 years (and 3 days)
A student mixes sand and salt together. How could they separate the two substances?
Dissolve the salt in water, filter out the sand, then evaporate the water
A box has 40 N pushing right and 15 N pushing left. What is the net force, and what will happen to the box’s motion?
25 N to the right, the box will accelerate to the right
What are the seven levels of classification used in taxonomy?
Kingdom Phylum Class Order Family Genus Species
What is the hottest flame colour on a Bunsen burner, and what position do the air holes need to be in?
Blue flame, open
What is the most abundant gas in Earth's atmosphere?
Nitrogen