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يذاكر   لممارسة   الاختبارات

البكتيريا الدرس: ماذا وكيف؟ - يذاكر

التعليمات

اقرأ المزيد من المعلومات حول المزيد من المعلومات حول مسبار النواة.

انقر فوق زر واحد للحصول على معلوماتك.

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نصيحة: اقرأ المعلومات الصعبة عن

1. كعب كلاين

تحتوي البكتيريا على عدد قليل من الكائنات الحية (الوزن الخفيف) يبلغ حجمها 0.00001 سم (1 سنتيمتر صغير). لقد أصبحت أفضل من أي وقت مضى وأنا أتقن استخدام المجهر.


Makkelijk   Moeilijk   Onbegrijpelijk

2. Ziekten

Bacteriën kunnen allerlei ziekten veroorzaken. Ook besmettelijke ziekten zoals tuberculose, difterie, de pest en cholera.


Makkelijk   Moeilijk   Onbegrijpelijk

3. Beschermen

Je kunt je beschermen tegen bacteriën door je goed te wassen (vooral je handen) met zeep en desinfectiegel, zonlicht, inenten en geneesmiddelen die de bacteriën doodmaken (desinfecteren).

Gelukkig zijn de meeste bacteriën goede bacteriën. Wij hebben ze zelfs nodig om gezond te blijven.


Makkelijk   Moeilijk   Onbegrijpelijk

4. Vermenigvuldigen

Bacteriën vermenigvuldigen zich heel snel. Bijvoorbeeld door hete lucht op stilstaand water.

Uit één enkele bacterie kunnen binnen één dag 70 miljoen nieuwe bacteriën ontstaan.


Makkelijk   Moeilijk   Onbegrijpelijk

5. 30 seconden regel

Als je 30 seconden lang met zeep en warm water rustig en grondig je handen wast, kun je veel ziekteverwekkende bacteriën van je handen af krijgen.

Tot voor kort was het de 20 seconden regel. Maar 20 seconden blijkt in de praktijk onvoldoende effectief.

Zing in je hoofd een liedje dat 30 seconden duurt. Dat helpt om het lang genoeg te doen.


Makkelijk   Moeilijk   Onbegrijpelijk

Kernpunten

Kernpunten om goed te onthouden zijn:

  • Bacteriën zijn onzichtbaar klein
  • Bacteriën zijn organismen
  • Bacteriën kunnen je ziek maken
  • Bacteriën groeien heel snel
  • Bacteriën houden niet van zeep

Volgende stap

Wanneer je de bovenstaande informatie een paar keer hebt doorgenomen, ga dan de oefeningen maken die hierbij horen.

Oefenen

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Primary School Wisdoms

These are the fundamental life lessons and pieces of advice that often get instilled in us during those formative years. They might seem simple, but they lay the groundwork for how we navigate the world.

Here are 7 key wisdoms often learned (or at least introduced) in primary school:

1 - Sharing is caring.This teaches the importance of generosity, cooperation, and considering the needs of others. It's a foundational concept for building positive relationships.

2 - Treat others how you want to be treated.This is the golden rule, emphasizing empathy, kindness, and respect in all interactions. It's about understanding that our actions have an impact on others.

3 - Try your best.This emphasizes the importance of effort and personal growth, regardless of the outcome. It encourages a positive attitude towards challenges.

4 - Be kind to everyone. This extends beyond just treating others well; it emphasizes inclusivity, compassion, and understanding towards all individuals, regardless of their differences.

5 - Everyone makes mistakes; it's okay to try again. This fosters resilience, encourages learning from errors, and reduces the fear of failure. It highlights the importance of perseverance.

6 - Be yourself.This fosters self-acceptance, individuality, and the understanding that everyone is unique and valuable in their own way. It discourages trying to fit in at the expense of one's own identity.

7 - Listen carefully when others are speaking.This develops active listening skills, shows respect, and aids in understanding. It's crucial for effective communication.

These wisdoms are often conveyed through stories, classroom rules, teacher guidance, and interactions with peers. They form a moral and social compass that helps children navigate their early years and beyond. While we might refine or expand on these ideas as we grow, their core messages often stick with us throughout life.

Fun Animal Facts

Here are 7 fun animal facts perfect for primary school children:

1 - Snails can sleep for up to three years: That's a very long nap!

2 - The fingerprints of a koala are so close to humans' that they could confuse crime scene investigators!

3 - Some frogs can freeze solid in winter and thaw out alive in spring: This amazing ability helps them survive cold temperatures.

4 - Elephants are the only land animals that can't jump: Their legs are too stiff and strong.

5 - Octopuses have three hearts: Two pump blood through the gills, and one pumps it to the rest of the body.

6 - A giraffe has the same number of bones in its neck as a human: That's right, both have seven neck bones, but a giraffe's are much, much longer!

7 - Kangaroos cannot walk backward: Their big tails and strong legs make it difficult.

These are just a few of the many amazing facts about animals! The animal kingdom is full of surprises.

Country Facts

Let's explore some fun facts about 7 different countries that you might find interesting!

1 - South Africa: It has the 'Rainbow Nation' nickname because of its many different cultures, and you can see penguins on some of its beaches!

2 - United States: It has many different landscapes, from sunny beaches in California to snowy mountains in Colorado, and it's the birthplace of Hollywood movies.

3 - New Zealand: It's famous for its unique bird called the kiwi (which is also the name of a fuzzy fruit!) and its beautiful green landscapes.

4 - Turkey: It's the only country that sits on two continents (Europe and Asia) and is famous for its hot air balloon rides over Cappadocia.

5 - Peru: High in the Andes Mountains, you can find Machu Picchu, an ancient city built by the Incas.

6 - Sweden: This is where the Nobel Prizes are awarded each year, and it's known for its colorful wooden houses.

7 - China: The Great Wall of China is so long that it can be seen from space (though it's debated how easily)! They also invented paper and the compass.

We hope these snippets give you a fun glimpse into different countries around the world! Each one has its own unique and fascinating things to discover.