Natural Science and Technology
Bosch Grade 4
ENERGY AND CHANGE
Click to see
PICTURES
from our lessons
Week 1 &2 challenge
Welcome Back!!
This week we looked at how energy is transferred from the Sun, to plants and animals. We played a fun game to find out who ate who, which should help you remember this concept. We alsolearnt about producers and consumers, amongst some other cool new things! This week's challenge is to see how much you understood and how well you can put your knowledge into practise!
Use the box below to answer the questions that follow.
1. What is a producer. Give an example from the box above [2]
2. Name all the primary consumers from the box above. [4]
3. What do all primary consumers have in common? (Hint: it is to do with something what they eat.)
4. What name do we give to such animals (in no.3)? [1]
5. What do we call animals that eat meat only? Give examples
from the box above. [5]
6. If I ate steak and vegetables for supper, would I be a
vegetarian? If not, what would you call me? [2]
7. What is the most important source of energy? [1]
8. Draw an example of a food chain using one producer, one primary consumer and one secondary consumer of your choice.[5]
[TOTAL=20]
a tuft of grass ; a lion ; a grasshopper ; a polar bear ; a tulip ; a seal ; a bee ;
a beluga whale ; a springbok ; an antelope.
Play a food chain game online! click on the chameleon below...
HOMEWORK
Week
Week
Check out Food Webs by Bill Nye The Science Guy.
Week 3 challenge
This week we learnt about the 6 forms of energy. We also looked at four sources of energy: heat; light; movement and sound. See how well you understood this week's work by completing this challenge :)
1. Write down the six forms of energy.
2. Look at the pictures in the box below. Link each picture to the form of energy it represents.
A) B) C) D) E) F)
3. Which picture (from the box above) produces heat?
4. Which picture (from the box above) produces sound?
5. Make up a riddle or song to help you remember the six forms of energy.
Check out these amazing videos!!
Week 4 challenge
This week we learnt about how energy is transferred from one object to another. We spoke about the input and output energy. Let's try the challenge...
State the input and output energy for each picture below:
a) b) c)
d) e) f)
Remember: start studying for NST test!
Week 5 challenge
We had an exciting week learning about soundwaves and how the ear works. There are many different ways I could test you on this topic. Let us try a few for this week's challenge...
Watch the two video's on the left hand side of the page on The Ear to help you answer the questions:
1. Fill in the missing words in the paragraph below.
2. Label the diagram of the ear.
Sound travels through _________ in a zigzag pattern towards the outer ear. The outer ear consists of two parts, the ________ and the ___ ______. The sound waves hit the _____ ______. Behind the eardrum are _______ little bones called the hammer, ________ and _______. The _________ is closest to the eardrum. The sound waves then travel to a "round shell"-looking device called the ________. we find tiny little ______ in the ________. There is also fluid in the ________ which carries the sound impulses to the _________ _____, which carries the message to the brain.
Click below to find out more about...
" You are not born smart. You LEARN to be smart!"
Week 7 challenge
This week we are working on our exciting project of building a Pizza Box Solar Oven. You will need to write out the steps on how to make your Pizza Box Solar Oven in y our project pages. Watch the video and pause it while you you write out each step. Remember to check your work before you hand in.
WELL DONE! You have spent the last two weeks working fantastically on your projects - your Pizza Box Solar Ovens! There are just two easy tasks for this challenge:
1. Take a look at the pictures that were taken of you all working so hard! Click on the Gallery Page to see them.
2. Think of something you could make using your pizza box solar oven. If we have time in the next two weeks... and if it is sunny.... we can bring our ingredients to class and make some snacks using our oven.
Week 8 challenge
challenge 9
This week we looked at how energy is used in music and musical instrument. We also learnt about some cool indigenous instruments.
Answer the questions below on the 5 different indigenous instruments we learnt about. (Use pg. 131 in your text book if you need help.)
1. Name the indigenous instruments that are classified
as STRING instruments.
2. Name the indigenous instrument that is made from an animal
part.
3. Which indigenous instrument is indigenous to the Venda
people?
4. Which indigenous instrument uses a round container to
amplify the sound (make the sound louder)?
5. Which indigenous instruments have more than one name?
Write down all the different names.
* Check your answers in Mrs Slater's classroom.
challenge 10
Relax and enjoy the long weekend!
Play outside!
Drink lots of water!
Holiday challenge
As we have such a short term next term and we start exams in week 5, we dedicated this week (and next week) to starting next term's work. We have a SUPER EXCITING topic next term -
The Earth and Beyond!
There will be no more challenges for this term but here are things you can so this holiday in preparation for next term:
1. Spot a shooting star while star gazing
2. Set up your tent in the garden and sleep
under the light of the moon.
3. Try to spot two planets: Venus and Mars.
4. Ask someone to show you where the
Southern Cross (in the stars) is and ask
them why it is so important to some people.
5. Try out your pizza box solar oven and test
how hot the sun can get!
6. If it is a hot day - do not forget to put on
sunblock and wear your cap!
7. Play outside this holiday and enjoy our
beautiful planet Earth!
