Year 7 Science
What does "IV" stand for?
Independent Variable
What is the study of biology?
Study of all living organisms
What is the name for one or more atoms of the same type?
Element
Push and Pull
How many planets are there is our solar system? (no pluto is not included)
8
What is the format of a hypothesis?
If.... then...because
If I am a spider, am I a vertebrate and invertebrate?
Invertebrate
What kind of contact force slows a moving object down?
Friction
What are the 2 types of eclipses
Lunar and Solar
3rd Person, Past Tense
What does the arrow in a food web show?
The direction the energy travels
Is oil and water classed as a solution?
Nup.
What is contact forces and give an example:
Forces that occur when two objects touch each other such as when you push someone over (pull a cart, there are a few)
What is an axis?
an imaginary line that goes through the center of a planet
Why would you choose to show your data in a bar graph rather than a line or dot graph?
Bar graphs are for data that is worded (categorical)
What are the 4 classes of vertebrates other than Mammal?
Amphibian, Fish, Reptile, Bird.
What is a solvent? Give an example please.
any liquid that dissolves another substance/s.
Water!
What kind of force is a balanced force? Explain if this will move the object.
Two forces that are equal in size and opposite in direction. When forces are balanced, an object does not move OR Maintains the speed it was already going
Why does the season of summer occur in the southern hemisphere while the season of winter is occurring in the northern hemisphere?
The earth is tilted and during summer the southern hemisphere is tilted towards the sun and therefore gets more sunlight and the northern hemisphere is tilted away and gets less sunlight
Melissa raises crickets at her pet store that she sells for reptile food. She decides to test if crickets chirp more often when the temperature gets warmer. What is the IV, DV and 2 CV's of this experiment?
IV: Temperature
DV: Number of chirps
CV: Food the crickets get, number of cricket, enclosure etc
What are the 7 classifications in the Linnaean classification system?
Hint: Kingdom......
kingdom, phylum, class, order, family, genus, species
100 points for each correct one
Draw a flow chart to separate a mixture of water, salt (soluble), cornflour (insoluble) and oil. The oil sits on top of the mixture and the cornflour is suspended in the mixture of water.
Steps
1. Decant oil off
2. filter our cornflower
3. evaporate water to get salt
How would you reduce friction? Give two examples.
You would add a lubricant, such as oil and grease (multiply your total score by 1.5)
In what moon phases do Neap tides occur?
The quarter phases