Investigations
What structure do you use to write a hypothesis?
If.... then.... because....
Which of the following detects changes inside or outside of your body:
A Effectors
B Receptors
C Response
D Stimulus
B Receptors
Which side of the equation arrow will you find reactions or products
Reactants left
Products right
Which of the following is an insulator?
A Copper
B Nichrome
C Rubber
D Aluminium
C Rubber
In a series circuit, if one component breaks, the others will...
stop working
1. List out steps in order
2. Sentences start with verbs
3. Don't refer to names/he/she etc
Which of the following responds to changes in the internal environment of your body?
A Effectors
B Receptors
C Response
D Stimulus
B Effectors
What will cause an atom to become a negative ion?
Gain electrons
An ammeter is used to measure ...
Electric current
The voltage of an electric circuit is a measure of...
The amount of energy gained or lost as it moves through the circuit
What is the difference between an independent and dependent variable? *hint IV DV TV
Independent - thing that is changed = antenna
Dependent - Thing that is affected (measured) = image
Describe the advantages of the presence of myelin on the axon of a neuron
allows electrical impulses to transmit quickly and efficiently along the nerve cells
When methane burns, it releases energy in the form of heat and light. What type of reaction is this?
Exothermic
List two advantages parallel circuits have over series circuits
1. Full voltage to each component
2. Can individually control components
True or False: An isotope has a different atomic number and the same mass number
FALSE
What 3 things need to be included in a scientific conclusion?
Reference to the aim, hypothesis, and what the results show
Describe the function of the medulla (brainstem)
Helps control subconscious processes like your heartbeat, breathing and blood pressure
What type of ions do acids release?
What type of ions do bases release?
H+ ions
OH- ions
State the equation used to find Voltage
V = I x R
How is the nervous system different to the endocrine system?
Electrical impulse vs Chemical messages
Neurones vs Hormones
Nerves vs Blood
Send messages vs regulate body functions
Give an example of an experiment and the independent and dependent variables involved
Teacher judgement
When blood glucose is too high, which organ releases what hormone?
Pancreas releases insulin
Name the ionic compounds:
Al2O3
CuCl2
Aluminium Oxide
Copper Chloride
Draw a diagram showing a battery, 2 globes in parallel, a voltmeter and a closed switch
Teacher judgement
Outline the functions of cerebrum, cerebellum, and brainstem
Cerebrum - thinking, decision making, judgement, problem solving
Cerebellum - balance and coordination
Brainstem - subconscious thought (breathing, heart beat etc)